Publications

1.    I. Postlethwaite and A.G.J.  MacFarlane, A Complex Variable Approach to the Analysis of Linear Multivariable Feedback Systems, Springer, Berlin, pp177, 1979.

2.    S. Skogestad and I.  Postlethwaite, Multivariable Feedback Control, John Wiley & Sons, Chichester, pp559, 1996. [Runner up, 1999 IFAC Triennial Control Engineering Textbook Prize].

3.    D.G. Bates and I. Postlethwaite, Robust Multivariable Control of Aerospace Systems, TU Delft Press, pp199, 2002.

4.    S. Skogestad and I.  Postlethwaite, Multivariable Feedback Control, John Wiley & Sons, Chichester, 2nd Edition, 2005.

1.    I. Postlethwaite, "Sensitivity Indices and Multivariable Gain and Phase Margins", Design of modern control systems, Eds Bell, Cook and Munro, Peter Peregrinus Ltd., 1982.

2.    I. Postlethwaite, "Multivariable Control", Industrial Digital Control Systems, Edited by Warwick and Rees, Peter Peregrinus, 1986.

3.    I. Postlethwaite, "Robustness in multivariable control system design", Encyclopaedia of Systems and Control, Ed. M.G. Singh, 1987.

4.    I. Postlethwaite, M.C. Tsai and D.-W. Gu, "Super Optimal H  Design", Robust Control of Linear Systems and Nonlinear Control, Eds: M.A. Kaashoek, J.H. van Schuppen, and A.C.M. Ran, Birkhäuser, Boston, 1990.

5.    D.W. Gu, I. Postlethwaite and M.C. Tsai, " H  super-optimal solutions. In: Advances in Control and Dynamic Systems, (C.T. Leondes, ed.), 51, pp 183- 247, 1992.

6.    I. Postlethwaite, D.-W. Gu, W. Feng and D.J. Walker, "Industrial applications of advanced multivariable control", Chapter 9 of Matlab Toolboxes and Applications, Eds. Chipperfield and Fleming, Peter Peregrinus, 1993.

7.    I. Postlethwaite and D.J. Walker, "Advanced Control of High Performance Rotorcraft", In: Aerospace Vehicle Dynamics and Control, Cook, M.W. and Rycroft, M.J. (eds), pp.161-180, Clarendon Press, Oxford, 1994.

8.   J.F. Whidborne, I. Postlethwaite and D-W. Gu, "Multiobjective control system design - a mixed optimization approach", In: World Scientific Series in Applicable Analysis, Vol. 5, Recent Trends in Optimization Theory and Applications, Ed. R.P. Agarwal, pp 467-482, 1995.

9.    G. Papageorgiou, K. Glover, A. Smerlas and I. Postlethwaite, "H  loop shaping", In: Robust Flight Control, A  Design Challenge, Lecture Notes in Control and Information Sciences, Vol. 224, pp. 64-80, Springer-Verlag, London, 1997.

10.    I. Postlethwaite, A. Smerlas and D.J. Walker, "H  in Flight", In: Learning, Control and Hybrid Systems, Lecture Notes in Control and Information Sciences, Vol. 241, pp 353-364, Springer-Verlag, London, 1999.

11.   D.G. Bates and I. Postlethwaite, "The Structured Singular Value and  -Analysis" In: Advanced Techniques for Clearance of Flight Control Laws,  Fielding et al (Eds), Springer-Verlag, 2002.

12.   D.G. Bates, R Kureemun, M. Hayes and I. Postlethwaite, " -Analysis of Linear Stability Criteria", In: Advanced Techniques for Clearance of Flight Control Laws, Fielding et al (Eds), Springer-Verlag, 2002.

13.    M.C. Turner, G. Herrmann and I. Postlethwaite, "Anti-windup compensation using a decoupling architecture", In: Advanced Strategies in Control Systems with Input and Output Constraints, eds. S. Tarbouriech, G. Garcia and A.H. Glattfelder, Springer-Verlag, 2006.

14.     A. Marcos, D.G. Bates and I. Postlethwaite, "Nonlinear symbolic LFT tools for modeling, analysis and design", In: Nonlinear Analysis and Synthesis Techniques for Aircraft Control, Bates and Hagstrom (Eds), Springer-Verlag, May 2007.

15.     J.-M. Biannic, A. Marcos, D.G. Bates and I. Postlethwaite, "Nonlinear LFT modeling for on-ground transport aircraft In: Nonlinear Analysis and Synthesis Techniques for Aircraft Control, Bates and Hagstrom (Eds), Springer-Verlag, May 2007.

16.     P.P. Menon, D.G. Bates and I. Postlethwaite, "Optimisation-based flight control law clearance", In: Nonlinear Analysis and Synthesis Techniques for Aircraft Control, Bates and Hagstrom (Eds), Springer-Verlag, May 2007.

17.     G. Herrmann, M.C. Turner and I. Postlethwaite, "Linear matrix inequalities in control", In: Mathematical Methods for Robust and Nonlinear Control, Turner and Bates (Eds), Lecture Notes in Control and Information Sciences, Vol. 367, Springer, 2007.

18.     M.C. Turner, G. Herrmann and I. Postlethwaite, "Anti-windup compensation and the control of input-constrained systems", In: Mathematical Methods for Robust and Nonlinear Control, Turner and Bates (Eds), Lecture Notes in Control and Information Sciences, Vol. 367, Springer, 2007.

19.     E. Prempain and I. Postlethwaite, "Output feedback H? loop-shaping controller synthesis", In: Mathematical Methods for Robust and Nonlinear Control, Turner and Bates (Eds), Lecture Notes in Control and Information Sciences, Vol. 367, Springer, 2007.

20.     G. Herrmann, M.C. Turner and I. Postlethwaite, "Case study on anti-windup compensation  - Micro-actuator control in a hard-disk drive", In: Mathematical Methods for Robust and Nonlinear Control, Turner and Bates (Eds), Lecture Notes in Control and Information Sciences, Vol.367, Springer, 2007.

21.     Y. Kim, D-W. Gu and I. Postlethwaite, "Real-time optimal time-critical target assignment for UAVs". In: Advances in Cooperative Control and Optimization, |Proceedings of the 7th International Conference on Cooperative Control and Optimization, edited by MJ Hirsch, P Pardalos, R Murphey and D Grundel, Lecture Notes in Control and Information Sciences, Vol. 369, Springer, 2007.

22.     P.P. Menon, D.G. Bates, I.Postlethwaite, A Marcos, V. Fernandez and S Bennani, "Worst-case analysis of flight control laws for hypersonic re-entry vehicles using hybrid differential evolution", In: Advances in Differential Evolution. Series: Studies in Computational Intelligence, vol. 143. Chakraborty (Ed), June 2008.

23.     I. Samy, I. Postlethwaite and D-W. Gu, "Subsonic tests of a flush air data sensing system applied to a fixed wing micro air vehicle", In: Unmanned Aircraft Systems, Chapter 22, Springer, December 2008.

24.     M.Z.Q. Chen, Z. Cheng, H.T. Zhang, T. Zhou and I. Postlethwaite, "Collective Aggregation Pattern Dynamics Control via Attractive/Repulsive Function," in "Complex 2009, Part II," Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, vol. 5, pp. 2064-2077, Springer, 2009.

1.    D. W. Gu and I. Postlethwaite (eds).  International Journal of Robust and Nonlinear Control, Special Issue on Robust Control Applications, 8 (2), February, 1998.

2.    I. Postlethwaite, J.M. Maciejowski, K. Glover and P.J. Fleming (eds). European Journal of Control, Special Issue:  "Fundamental Issues in Control - ECC 2003", 9 (2-3), 2003.

1.    A.G.J. MacFarlane and I. Postlethwaite, "The generalised Nyquist stability criterion and multivariable root loci", Int. J. Control, 25, 81-127, 1977. [Republished in "Frequency-response methods in control systems", in memoriam Harry Nyquist, edited by A.G.J. MacFarlane, IEEE Press 1979].

2.    I. Postlethwaite, "The asymptotic behaviour, the angles of departure, and the angles of approach to the characteristic frequency loci", Int. J. Control, 25, 677-695, 1977.

3.    A.G.J. MacFarlane and I. Postlethwaite, "Characteristic frequency functions and characteristic gain functions", Int. J. Control, 26, 265-278, 1977. [Republished in "Frequency-response methods in control systems", in memoriam Harry Nyquist, edited by A.G.J. MacFarlane, IEEE Press 1979].

4.    I. Postlethwaite, "A generalised inverse Nyquist stability criterion", Int. J. Control, 26, 325-340, 1977.

5.    A.G.J. MacFarlane and I. Postlethwaite, "Extended Principle of the Argument", Int. J. Control, 27, 49-55, 1978.

6.    I. Postlethwaite, "A note on the characteristic frequency loci of multivariable linear optimal regulators", IEEE Trans. Automatic Control, 23, 757-760, 1978.

7.    I. Postlethwaite, "Association between branch points and stationary points on the gain and frequency surfaces", Int. J. Control, 29, 255-260, 1979.

8.    I. Postlethwaite, "A note on parametric stability", Int. J. Control, 29, 261-266, 1979.

9.    I. Postlethwaite, "Algebraic function theory in the analysis of multivariable feedback systems, Proc. IEE, 126, 555-562, 1979.

10.   I. Postlethwaite, J.M. Edmunds and A.G.J. MacFarlane, "Principal Gains and Principal Phases in the Analysis of Linear Multivariable Feedback Systems", IEEE Trans. Automatic Control, 26, 32-46, 1981.

11.   I. Postlethwaite, "Analysis and design of linear multivariable control systems", Science Progress, 68, 531-522, 1981.

12.   I. Postlethwaite, "Sensitivity of the Characteristic Gain Loci", Automatica, 18, 709-712, 1982.

13.   B. Kouvaritakis and I. Postlethwaite, "Principle gains and phases: insensitive robustness measures for assessing the closed loop stability property", IEE Proc. 129, Part D, 233-241, 1982.

14.   Y.K. Foo and I. Postlethwaite, "An H  -minimax approach to the design of robust control systems", Systems and Control Letters, 5, 81-88, 1984.

15.   I. Postlethwaite and Y.K. Foo, "Robustness with simultaneous pole and zero movement across the j -axis", Automatica, 21, 433-443, 1985.

16.   I. Postlethwaite and Y.K. Foo, "A robustness test for distributed feedback systems", Int. J. Control, 41, 973-980,1985.

17.   I. Postlethwaite, M.S. Tombs, Y.K. Foo and A.P. Loh, "On the relationship between Lehtomaki's robustness test and an inverse Nyquist based test",  IEEE Trans. Automatic Control, 30, 927-928, 1985.

18.   A.P. Loh, G.O. Correa and I. Postlethwaite, "Estimation of uncertainty bounds for robustness analysis", IEE Proc., 134, Part D, 9-16, 1986.

19.   Y.K. Foo and I. Postlethwaite, "An H -minimax approach to the design of robust control systems. Part II - All solutions, all-pass form solution and 'best' solution", Systems and Control Letters, 7, 261-268, 1986.

20.   I. Postlethwaite, "New Perspectives in Industrial Control System Design", Process Engineering, March, 1986.

21.   M.S. Tombs and I. Postlethwaite, "Truncated balanced realisation of a stable non-minimal state-space system", Int. J. Control, 46, 1319-1330, 1987.

22.   I. Postlethwaite, D.-W. Gu and S.D. O'Young, "Some Computational Results on Size Reduction in H  Design", IEEE Trans. Automatic Control, 33, 177- 184, 1988.

23.   Y.K. Foo and I. Postlethwaite, "Extensions of the Small   Test for Robust Stability", IEEE Trans. Automatic Control, 33, 172-176, 1988.

24.   M.C. Tsai, D.-W. Gu and I. Postlethwaite, "A State-Space Approach to Super- Optimal H  Control Problems", IEEE Trans. Automatic Control, 33, 833-843, 1988.

25.   I. Postlethwaite, S.D. O'Young and D.-W. Gu, "A Note on McMillan Degree Bounds for H  Optimal Controllers", Int. J. Control, 48, 1743-1747, 1988.

26.   I. Postlethwaite, S.D. O'Young and D.-W. Gu, "Stable-H - an H  Control System Design Package", Trans. Inst. Measurement and Control, 2, 103-109, 1988.

27.   S.D. O'Young, I. Postlethwaite and D.-W. Gu, "A Treatment of j  Axis Model Matching Transformation Zeros in the Optimal H2 and H  Control Designs", IEEE Trans. Automatic Control, 34, 551-553, 1989.

28.   A. Yue, I. Postlethwaite and G. Padfield, "H  Design and the Improvement of Helicopter Handling Qualities", Vertica, 13, 119-132,1989.

29.   D.-W. Gu, M.C. Tsai and I. Postlethwaite, "An Algorithm for Super-Optimal H  Design: the 2-Block Case", Automatica, 25, 215-221, 1989.

30.   I. Postlethwaite, M.C. Tsai and D.-W. Gu, "A State-Space Approach to Discrete-Time Super-Optimal H  Control Problems",Int. J. Control, 49, 247- 268, 1989.

31.   D.-W. Gu, M.C. Tsai, S.D. O'Young and I Postlethwaite, "State-Space Formulae for Discrete-Time H  Optimisation", Int. J. Control, 49, 1683-1723, 1989.

32.   A. Linnemann, I. Postlethwaite and B.D.O. Anderson, "Almost Disturbance Decoupling with Stabilization by Measurement Feedback", Systems and Control Letters, 12, 225-234, 1989.

33.   M.C. Tsai, D.-W. Gu, I. Postlethwaite and B.D.O. Anderson, "A Pseudo Singular Value Decomposition and Inner Functions in Super-Optimal Control", Int. J. Control, 51, 1119-1131, 1990.

34.   D.-W. Gu, M.C. Tsai and I. Postlethwaite, "A Frame Approach to the H  Super-Optimal Solution", IEEE Trans. Automatic Control, 35, 829-834, 1990.
 
35. D.-W. Gu, M.C. Tsai and I. Postlethwaite, "Improved Formulae for the 2-Block H  Super-Optimal Solution", Automatica, 26, 437-440, 1990.

36.   A. Yue and I. Postlethwaite, "Improvement of Helicopter Handling Qualities Using H  Optimisation", IEE Proc., Part D, 137, 115-129, 1990. [IEE F.C. Williams premium (£500)].

37.   I. Postlethwaite, J.-L. Lin, and D.-W. Gu, "A Loop Shaping Approach to Robust Performance for SISO Systems",Trans. Inst. MC, 13(5), 262-268, 1991.

38.   M.C. Tsai and I. Postlethwaite, "On J-lossless coprime factorizations and H  control", Int. J. of Robust and Nonlinear Control, 1(1), 47-68, 1991.

39.   I. Postlethwaite, "Robust control of multivariable systems using H  optimization", Benelux Quarterly J. on Automatic Control, Journal a, 32(4), 8-19, 1991.

40.   M.C. Tsai, E.J.M. Geddes and I. Postlethwaite, "Pole-zero cancellations and closed-loop properties of an H  mixed sensitivity design problem", Automatica, 28(3), 519-530, 1992.

41.   J.L. Lin, I. Postlethwaite and D.-W.Gu, " -K Iteration: A New Algorithm for  - synthesis", Special Issue on Robust Control, Automatica, 1, (29), 219-224, 1993.

42.   W. Feng and I. Postlethwaite, "A Simple Robust Control Scheme for Robot Manipulators with only Joint Position Measurements", Int. J. of Robotics Research, 12(5), 490-496, 1993.

43.   D.-W. Gu, B.W. Choi and I. Postlethwaite, "Low Order Stabilizing Controllers", IEEE Trans. Automatic Control, 38(11), 1713-1717, November, 1993.

44.   I. Postlethwaite, J.F. Whidborne, G. Murad and D.W. Gu, "Robust Control of the Benchmark Problem Using H  Methods and Numerical Optimization Techniques", Automatica, 30(4), 615-619, April, 1994.

45. S.S. Ge and I. Postlethwaite, "Nonlinear Adaptive Control of Robots Including Motor Dynamics", Proceedings IMechE, Part I, Journal of Systems and Control Engineering, 208(2), 89-99, 1994.

46.   J.-L. Lin, I. Postlethwaite and D.-W. Gu, "The Calculation of Real-  and Controller Design", Int. J. Control., 59(6), 1421-1437, 1994.

47.   J.F. Whidborne, I. Postlethwaite and D.-W. Gu, "Robust Controller Design Using H  Loop Shaping and the Method of Inequalities", IEEE Trans. on Control System Technology, 2(4), 455-461, December 1994.

48.   W. Feng and I. Postlethwaite, "Robust Nonlinear H /Adaptive Control of Robot Manipulator Motion", Proc. I.Mech.E., Part I, Journal of Systems and Control Engineering, 208(4), 221-230,1994

49.   B.W. Choi, D.-W. Gu and I. Postlethwaite, "Low-Order H  Sub-Optimal Controllers", IEE Proc.-Control Theory Appl., 141(4),243-248,1994

50.   J.F. Whidborne, G. A. Murad, D.-W. Gu and I. Postlethwaite, "Robust Control of an Unknown Plant - the IFAC 93 Benchmark", Int. J. Control, 61(3), 589-640, March 1995

51.   R. Samar, I. Postlethwaite and D.-W. Gu, "Model Reduction with Balanced Realizations", Int. J. Control, 62(1), 33-64, July, 1995.

52.   J. F. Whidborne, I. Postlethwaite and D-W Gu, "Robust control of a paper machine", Control Engineering Practice, 3 (10), 1475-1478, 1995.

53.   S.S. Ge and I. Postlethwaite, "Adaptive neural network controller design for flexible joint robots using singular perturbation technique", Trans. Inst. Measurement and Control, 17, (3), 120-131, 1995.

54.   D.J. Walker and I. Postlethwaite, "Advanced helicopter flight control using 2 degree-of-freedom H  optimization", J of Guidance Control and Dynamics, 19(2), 461-468, 1996.

55.   M.M. Konstantinov, P.Hr. Petkov, D-W. Gu and I. Postlethwaite, "Two dimensional measures and perturbations preserving reachability", Int. J. Control, 64(2), 195-215, 1996.

56.   R. Samar, G. Muard, I. Postlethwaite, D-W Gu, "A discrete-time H  observer-based controller and its application to a glass tube production process", European J. of Control, 2, 112-125, 1996.

57.   I. Postlethwaite, P.A. Atack and I.S. Robinson, "The improved control for an aluminium hot reversing mill using the combination of adaptive process models and an expert system", J of Materials Processing Technology, Vol 60, pp393-398, 1996.

58.   M.M. Konstantinov, P.Hr. Petkov, D-W. Gu and I. Postlethwaite, "Perturbation analysis of orthogonical canonical forms". Linear Algebra and Its Applications, 251, 267-291, 1997.

59.   G. Murad, I. Postlethwaite, D-W Gu, "On the design of robust internal model-based controllers", Int. J. of Control, 68(3), 513-537, 1997.        

60.   G. Murad, I. Postlethwaite, D-W Gu, "A discrete-time internal model based H  controller and its application to a binary distillation column", J. of Process Control, 7(6), 451-465, 1997.

61.   J.F. Whidborne, D-W Gu and I. Postlethwaite, "Simulated annealing for multi-objective control system design", IEE Proceedings - Control Theory and Applications, 144(6), 582-588, 1997.

62.   M.M. Konstantinov, P.Hr. Petkov, D-W Gu and I. Postlethwaite, "Nonlocal sensitivity analysis of the eigensystem of a matrix with distinct eigenvalues", Numer. Funct. Anal. and Optimiz., 18(3&4), 367-382, 1997.

63.   A.A. Saif, D-W. Gu and I. Postlethwaite, "Strong stabilization of MIMO systems via H  optimization", Systems and Control Letters, 32, 111-120, 1997.

64.   X.Y. Lu, S.K. Spurgeon and I. Postlethwaite, "Robust variable structure control of PVTOL aircraft", Int. J. of Systems Science, 28(6), 547-558, 1997.

65.   C. Edwards and I. Postlethwaite, "Anti-windup and bumpless transfer schemes", Automatica, 34(2), 199-210, February 1998.

66.   E.J.M. Geddes and I. Postlethwaite, "Improvements in product quality in tandem cold rolling using robust multivariable control", IEEE J of Control Systems Technology, Special Issue on Control of Rolling Processes, 6(2), 257-269, March 1998.

67.   A.A. Saif, D-W. Gu and I. Postlethwaite, "Strong stabilization of MIMO systems via unimodular interpolation in H ",  Int J of Control, 69(6), 797-818, April 1998.

68.   I. Postlethwaite and A. Bartoszewicz, "Application of nonlinear H  control to the Tetrobot robot manipulator", IMechE Proceedings  Part I: J of Systems and Control Engineering, 212 (6), 459-465, 1998.
 
69. M.M. Konstantinov, P.Hr. Petkov, J Kawelke, A. Linnemann, D-W Gu and I. Postlethwaite, "Sensitivity of system norms",  Int J of Control. 72(1), 84-95, January 1999.

70.    I. Postlethwaite and D.G. Bates, "Robust integrated flight and propulsion controller for the Harrier STOVL aircraft",  AIAA J of Guidance, Control and Dynamics,  22(2), 286-290, March-April, 1999.

71.   C. Edwards and I. Postlethwaite, "An anti-windup scheme with closed-loop stability considerations" Automatica, 35(4), 761-765, April 1999.

72.   I. Postlethwaite, A. Smerlas, D.J. Walker, A.W. Gubbels, S.W. Baillie, M.E. Strange, J. Howitt, "H  control of the NRC Bell 205 fly-by-wire helicopter", Journal of American Helicopter Society, 44(4), 276-284, October 1999.

73.   D G Bates, S L Gatley, I. Postlethwaite and A J Berry , "Design and piloted simulation of a robust integrated flight and propulsion controller",  AIAA J of Guidance, Control and Dynamics, 23(2), 269-277, March-April, 2000.

74.   E. Prempain, I. Postlethwaite and X.D. Sun, "Robust control of a gasifier using a mixed sensitivity H  approach", IMechE Proceedings Part I: J of Systems and Control Engineering, Special issue on the GEC Alstom MEC gasifier benchmark challenge, 214, 415-426, 2000.

75.   P.F. Weston and I. Postlethwaite, "Linear conditioning  for systems containing saturating actuators", Automatica, 36(9), 1347-1354, September 2000.

76.   Prempain, I. Postlethwaite, "A new two-degree-of-freedom gain scheduling method applied to the Lynx MK7", Journal of Systems and Control Engineering, Proceedings of IMechE, Vol 214 Part I, Issue 4, 299-311, 2000.

77.   M.C. Turner, I. Postlethwaite and D.J. Walker, "Nonlinear tracking control for multivariable constrained input linear systems", Int. J Control, 73(12), 1160-1172, 2000.

78.   S.L. Gatley, D.G. Bates and I. Postlethwaite, "A partitioned integrated flight and propulsion control system with engine safety limiting", Control Engineering Practice,  8(8), 845-859, August 2000.

79.   Postlethwaite, I.K. Konstantopoulos, X.D. Sun, D.J. Walker, A.G. Alford, "Design, flight simulation, and handling qualities evaluation of an LPV gain-scheduled helicopter flight control system",  European J of Control, 6(6) 553-566, 2000.

80.   E. Prempain, I. Postlethwaite, "Feedforward control: a full information approach", Automatica, 37(1), 17-28, January 2001.

81.   A.J. Smerlas, D.J. Walker, I. Postlethwaite, M.E. Strange, J. Howitt, A.W. Gubbels, "Evaluating H  controllers on the NRC Bell 205 fly-by-wire helicopter", Control Engineering Practice, 9(1), 1-10, 2001. [IFAC Best Paper prize (2002) for paper published in Control Engineering Practice over period 1999-2002.].

82.   M.C. Turner, D.G. Bates, and I. Postlethwaite, "Input/output conditioning of robust integrated flight and propulsion controller systems", AIAA Journal of Guidance, Control and Dynamics, 24(6), 1089-1099, Nov-Dec, 2001.

83.   M.J. Hayes, D.G. Bates and I. Postlethwaite, "New tools for computing tight bounds on the real structured singular value", AIAA Journal of Guidance, Control and Dynamics, 24(6), 1204-1213, Nov  Dec. 2001.

84.   E. Prempain and I. Postlethwaite, "Static output feedback stabilisation with H  performance for a class of problems", Systems and Control Letters, 43, 159-166, 2001.

85.   M.C. Turner and I. Postlethwaite, "Guaranteed stability regions of linear systems with actuator saturation using the low-and-high gain technique" Int. J Control,74(14), 1425-1434, 2001.

86.   Y. He, K.M. Liew, D.W. Gu, I. Postlethwaite and G.X. Wang,  "On the control design of a gyro test table", IMechE Proceedings Part I: J of Systems and Control Engineering, 215, 2, 169-175, 2001.
        
87.   D.G. Bates, R. Kureemun and I. Postlethwaite, "Quantifying the robustness of flight control systems using Nichols exclusion regions and the structured singular value",  IMechE Proceedings Part I: J of Systems and Control Engineering, 215, 625-638, 2001.

88.   A.W. Saif, D.W. Gu, D. Kavranoglu and I. Postlethwaite, "Simultaneous stabilization of MIMO systems via robustly stabilizing a central plant", IEEE Trans on Automatic Control, 47 (2), Feburary,
2002.
       
89.   E. Prempain, I. Postlethwaite and A. Benchaib, "A linear parameter variant H  control design for an induction motor",  Control Engineering Practice, 10, 633-644, 2002.
     
90.   S.L. Gatley, D.G. Bates, M.J. Hayes and I. Postlethwaite, "Robustness analysis of an integrated flight and propulsion control system using   and the  -gap metric", Control Engineering Practice, 10, 261-275, 2002.

91.   N. Aouf, D.G. Bates, I. Postlethwaite and B. Boulet, "Scheduling of integrated flight and propulsion control laws for a V/STOL aircraft in the acceleration from hover",  Control Engineering Practice, 10, 685-696, 2002.

92.   T. Mannchen, D.G. Bates and I. Postlethwaite, "Modelling and computation of worst-case uncertainty combinations for flight control systems analysis", AIAA Journal of Guidance, Control and Dynamics, 25 (6), 1029-1039, Nov/Dec, 2002.

93.   M.C. Turner and I. Postlethwaite, "Output violation compensation for systems with output constraints", IEEE Trans on Automatic Control, 47(9), 1540-1546, Sept, 2002.

94.   G. Grimm, J. Hatfield, I. Postlethwaite, A.R. Teel, M.C. Turner, L. Zaccarian, "Anti-windup for stable linear systems with input saturation: an LMI-based synthesis", IEEE Trans on Automatic Control, 48(9), 1509-1525, Sept, 2003.

95.   G. Grimm, I. Postlethwaite, A. R. Teel, M.C. Turner, L. Zaccarian, "Case studies using linear matrix inequalities in anti-windup synthesis for stable linear systems with input saturation",  European Journal of Control, 9(5), 463-473, 2003.

96.   M.C. Turner and I. Postlethwaite, "A new perspective on static and low order anti windup synthesis", Int. J Control, 77(1), 27-44, 2004.

97.   M.C. Turner and I. Postlethwaite, "Multivariable override control for systems with output and state constraints", Special Issue of Int. Journal of Robust and Nonlinear Control on Control of Linear Systems Subject to Hard Constraints, 14 (13-14), 1105-1131, September, 2004.

98.   G. Herrmann, M.C. Turner, I. Postlethwaite and G. Guo, "Practical implementation of a novel anti-windup scheme in a HDD-dual-stage servo-system", IEEE/ASME Transactions on Mechatronics, 9 (3), 580-592, September, 2004.

99.   V.A. Tsachouridis and I. Postlethwaite, "Pseudo-linear controllers for systems with saturated actuators", IEE Proceedings Control Theory and Applications, 151 (6), 783-789, November 2004.

100.   M.C. Turner and I. Postlethwaite, "Nonlinear regulation in constrained input discrete-time linear systems", Int. J. Control, 77(15), 1330-1342, 2004.

101.   I. Postlethwaite, E. Prempain. E. Turkoglu, M.C. Turner, K. Ellis and A. W. Gubbels, "Design and flight testing of various H  controllers for the Bell 205 helicopter", Control Engineering Practice,    13, Special Section on Aerospace Control, 383-398, 2005.

102.   L. Yao, I. Postlethwaite, W. Browne, D-W. Gu, M. Mar and S. Lowes, "Design, implementation and testing of an intelligent knowledge-based system for the supervisory control of a rolling mill", Journal of Process Control, 15, 615-628, 2005. [http://authors.elsevier.com/sd/article/S0959152405000223].
 
103.  E. Prempain and I.  Postlethwaite, "Static H  loop shaping control of a fly-by-wire helicopter", Automatica, 41(9), 1517-1528, September, 2005.

104.  J. Kim, D.G. Bates and I. Postlethwaite, "Nonlinear robust performance analysis using complex-step gradient approximation", Automatica, 42 (1), 177-182, January, 2006.

105.   S.L.Gatley, M.C. Turner, I. Postlethwaite and A. Kumar, "A comparison of rate-limit compensation schemes for pilot-induced-oscillation avoidance", Aerospace Science and Technology, 10(1), 37-47, January, 2006.

106.   P.P Menon, D.G. Bates and I. Postlethwaite, "Computation of Worst-Case pilot inputs for nonlinear flight control system analysis", AIAA Journal of Guidance, Control and Dynamics, 29 (1), January-February, 2006.

107.   G. Herrmann, M.C. Turner, I. Postlethwaite, "Discrete-time and sampled-data anti-windup synthesis:stability and performance", Special Issue of International Journal of Systems Science, 37(2), 91-113, February, 2006.

108.   W. Browne, L. Yao, I. Postlethwaite, S. Lowes and M. Mar, "Knowledge-elicitation and data-mining: fusing human knowledge and industrial plant information", Artificial Intelligence in Engineering, 19(3), 345-359, April, 2006. 

109.   J. Kim, D.G. Bates, I. Postlethwaite, L Ma and P.A. Iglesias, "Robustness analysis of  biochemical network models" IEE Proc. Systems Biology, 153 (3), 96-104, May, 2006.

110.   J. Kim, D.G. Bates and I. Postlethwaite, "Robustness analysis of linear periodic time-varying systems subject to structured uncertainty", Systems and Control Letters, 55(9), 719-725, September 2006.

111.   P.P Menon, J. Kim, D.G. Bates and I. Postlethwaite, "Clearance of nonlinear flight control laws using hybrid evolutionary optimization", IEEE Transactions on Evolutionary Computation, 10 (6), 689-699, December 2006.

112.   M.C. Turner, N. Aouf, D.G. Bates, I. Postlethwaite and B. Boulet, "Switched control of a V/STOL aircraft: an application of LQ bumpless transfer", IMechE Proceedings Part I: J of Systems and Control Engineering, 220 (I3), 157-170, 2006.

113.   V.A. Tsachouridis, N. Karcanias and I. Postlethwaite, "A unified framework for the numerical solution of general quadratic matrix equations", IMA J of Mathematical Control and Information, (Advanced Access published on 7 August 2006), 24(2), 259-287, 2007.

114.   J. Sofrony, M.C. Turner and I. Postlethwaite, "Anti-windup synthesis using Riccati equations", Int. J Control, 80(1), 112-128, January 20007.

115.   J. Kim, D.G. Bates, I. Postlethwaite, P. Heslop-Harrison, K-H Cho, "Least-squares methods for identifying biochemical regulatory networks from noisy measurements", BMC Bioinformatics 2007, 8:8 (10 Jan 2007).

116.   G. Herrmann, M.C. Turner, I. Postlethwaite, "Performance oriented anti-windup for a class of linear control systems with augmented neural network controllers", IEEE Transactions on Neural Networks, 18(2), 449-465, 2007.

117.   I. Postlethwaite, M.C. Turner and G. Herrmann, "Robust Control Applications", IFAC Annual Reviews in Control, 31, 27-39, June, 2007. (Available online 3 May 2007).

118.   Y. Kim, D-W. Gu and I. Postlethwaite, "Real-time optimal mission scheduling and flight path selection", IEEE Trans on Automatic Control, 52(6), 1119-1123, June, 2007.

119.   A. Marcos, M.C. Turner and I. Postlethwaite, "An architecture for design and analysis of high-performance robust anti-windup compensators",  IEEE Trans on Automatic Control, 52(9), 1672-1679, September, 2007.

120.   P.P Menon, D.G. Bates and I. Postlethwaite, "Nonlinear robustness analysis of flight control laws for highly augmented aircraft", Control Engineering Practice, 15, 655-662,2007.

121   A. Marcos, D.G. Bates and I. Postlethwaite, "A symbolic matrix decomposition algorithm for reduced order linear fractional transformation modelling", Automatica, 43(7), 1211-1218, 2007.

122.   M.C. Turner, G. Herrmann and I. Postlethwaite, "Incorporating robustness requirements into anti-windup design", IEEE Trans on Automatic Control, 52(10), 1842-1855, 2007.

123.   J. Kim, P. Heslop-Harrison, I. Postlethwaite, and D.G. Bates, " Stochastic noise and synchronization during Dictyostelium aggregation make cAMP oscillations robust", PLoS Computational Biology, 3(11), November, 2007.

124.   K. Natesan, D-W. Gu and I. Postlethwaite, "Design of static H? loop shaping LPV controllers for a UAV", AIAA Journal of Guidance, Control and Dynamics, 30(6), 1822-1827, Nov-Dec, 2007.

125.   N. Valeyev, P. Heslop-Harrison, I. Postlethwaite, N.V. Kotov and D.G. Bates, " Multiple calcium binding sites make calmodulin multifunctional", Molecular BioSystems, 4, 66-73, 2008.

126.   Y. Kim, D-W. Gu and I. Postlethwaite, "Real-time path planning with limited information for autonomous uninhabited air vehicles", Automatica, 44(3), 696-712, 2008.

127.   G. Herrmann, M.C. Turner, I. Postlethwaite, "A robust override scheme enforcing strict output constraints for a class of strictly proper systems", Automatica, 44(3), 753-760, 2008.

128.   J. Kim, D.G. Bates, I. Postlethwaite, P. Heslop-Harrison, K-H Cho, "Linear time-varying models can reveal nonlinear interactions of biomoleculor regulatory networks using multiple time-series data" Bioinformatics, 24(10), 1286-1292, 2008.

129.   N. Valeyev, D.G. Bates, P. Heslop-Harrison, I. Postlethwaite and N.V. Kotov, "Elucidating the mechanisms of cooperative calcium-calmodulin interactions: a structural systems biology approach", BMC Systems Biology, 2:48, June, 2008.

130.   I. Samy, I. Postlethwaite and D-W. Gu, "Subsonic tests of a flush air data sensing system applied to a fixed wing micro air vehicle", Journal of Intelligent and Robotic Systems, Springer, 54 (1-3), 275-295, July 2008.

131.   J. Kim, D.G. Bates and I. Postlethwaite, "Evaluation of Stochastic Effects on Biomolecular Networks Using the Generalised Nyquist Stability Criterion", IEEE Trans on Automatic Control, 53(8), 1937-1941, September, 2008.

132.   D.-W. Gu, Kannan Natesan and I. Postlethwaite, "Modelling and robust control of fluidic thrust vectoring and circulation control for UAVs", Proc. I.Mech.E., Part I: J. Systems and Control Engineering, 222(I5), 333-345, 2008.

133.   E. Prempain and I. Postlethwaite, "L2 and H2 performance analysis and gain-scheduling synthesis for parameter-dependent systems", Automatica, 44(8), 2081-2089, August, 2008.

134.   G. Herrmann, B. Hredzak, M.C. Turner, I. Postlethwaite and G. Guo, "Discrete robust anti-windup to improve a novel dual-stage large-span track-seek/following method", IEEE Trans on Control Systems Technology, 16(6), 1342-1351, November 2008.

135.   N. Valeyev, P. Heslop-Harrison, I. Postlethwaite, A.N. Gizatullina, N.V. Kotov and D.G. Bates, "Crosstalk between G-protein and Ca2+ pathways switches intracellular cAMP levels", Molecular BioSystems, 5,43-51, 2009.

136.   O. Brieger, M. Kerr, D. Leissling, I. Postlethwaite, J. Sofrony and M.C. Turner, "Flight testing of a rate saturation compensation scheme on the ATTAS aircraft", Aerospace Science and Technology, 13, 92-104, 2009.

137.   J. Kim, D.G. Bates and I. Postlethwaite, "A geometrical formulation of the ?-lower bound problem", IET Control Theory and Applications, 3(4), 465-472, April 2009.

138.   Y. Kim, D-W. Gu and I. Postlethwaite, "Spectral radius minimization for optimal average consensus and output feedback stabilization", Automatica, 45(6),1379-1386, 2009.

139.   N. Valeyev, J-S. Kim, P. Heslop-Harrison, I. Postlethwaite, N.V. Kotov and D.G. Bates, "Computational modelling suggests dynamic interactions between Ca2+, IP3 and G protein-coupled modules are key to robust Dictyostelium aggregation", Molecular BioSystems, 5, 612-628, 2009.

140.   M.C. Turner, G. Herrmann and I. Postlethwaite, "Improving sector-based results for systems with deadzone nonlinearities and constrained control applications", Automatic, 145(1), 155-160, 2009.  [On-line: 30-NOV-2008 DOI information: 10.1016/j.automatica.2008.05.031].

141.   J. Kim, D.G. Bates and I. Postlethwaite, "Robustness analysis of magnetic torquer controlled spacecraft attitude dynamics", Automatic Control in Aerospace, year 2, number 1, June 2009.

142.   P.P. Menon, I. Postlethwaite, A. Marcos, S. Bennani and D.G. Bates, "Robustness analysis of a reusable launch vehicle flight control law", Control Engineering Practice, 17(7) 751-765, July 2009.

143.   M.C. Turner, M. Murray and I. Postlethwaite, "On the existence of stable, causal multipliers for systems with slope-restricted nonlinearities" IEEE Trans on Automatic Control, 54(11), 2697-2702, November 2009.

144.   R. Samar and I. Postlethwaite, "Design and implementation of a digital multi-mode H? controller for the Spey turbofan engine", ASME Journal of Dynamic Systems, Measurement and Control, 132(1), pp11, January 2010.

145.   J. Sofrony, M.C. Turner and I. Postlethwaite, "Anti-windup synthesis for systems with rate-limits using Riccati equations", Int. J Control, 83 (2), 233, 2010.

146.   K. Natesan, D-W. Gu and I. Postlethwaite, "Design of linear parameter varying trajectory tracking controllers for an unmanned air vehicle", Proc. IMechE, Part G: J. Aerospace Engineering, 224(4), special issue paper, 395-402, 2010.

147.   Y. Kim, D-W. Gu and I. Postlethwaite, "Robust target tracking using distributed UAV networks", Proc. IMechE, Part G: J. Aerospace Engineering, 224(4), special issue paper, 417-426, 2010.

148.   D-W. Gu, Y. Kim and I. Postlethwaite, "How tight is sphere-packed formation flying?" Proc. IMechE, Part G: J. Aerospace Engineering, 224(4), special issue paper, 427-435, 2010.

149.   I. Samy, I. Postlethwaite and D-W. Gu, "Sensor fault detection and accommodation using neural networks applied to a nonlinear unmanned air vehicle model", Proc. IMechE, Part G: J. Aerospace Engineering, 224(4), special issue paper, 437-447, 2010.

150.   I. Samy, I. Postlethwaite and D.-W. Gu, "A comparative study of NN and EKF based SFDA schemes with application to a nonlinear UAV model", Int. J. Control, 83(5), 1025-1043, May, 2010.

151.   J-S. Kim, N.V. Valeyev, I. Postlethwaite, P. Heslop-Harrison, K-H. Cho and D.G. Bates, "Analysis and extension of a biochemical network model using robust control theory", special issue, Focus on Robustness in Systems Biology: Methods and Applications, International Journal of Robust and Nonlinear Control, 20(9), 1017-1026, June 2010.

152.   J. Kim, P. Heslop-Harrison, I. Postlethwaite and D.G. Bates, "Structural adaptation and robustness of Dictyostelium ligand-receptor kinetics for low and high ligand concentrations", special issue, Focus on Robustness in Systems Biology: Methods and Applications, International Journal of Robust and Nonlinear Control, 20(9), 1047-1058, June 2010.

153.   M. Kothari, I. Postlethwaite and  D.-W. Gu, "A sub-optimal path planning algorithm using rapidly-exploring random trees", International Journal of Aerospace Innovations, 2 (1&2), 93-103, 2010.

154.   G. Herrmann, P.P. Menon, M.C. Turner, D.G. Bates and I Postlethwaite, "Anti-windup synthesis for nonlinear dynamic inversion control schemes", International Journal of Robust and Nonlinear Control Systems, 20(13), 1465-1482, September, 2010.

1.   I. Postlethwaite, "Methods for assessing the robustness properties of a linear multivariable feedback design", Workshop on Recent Advances in the Robustness Theory of Multivariable Systems, Massachusetts Institute of Technology, April 1979.

2.   I. Postlethwaite, J.M. Edmunds and A.G.J. MacFarlane, "Principle Gains and Principle Phases in the Analysis of Linear Multivariable Feedback Systems", Joint Automatic Control Conference, San Francisco, August 1980. [O. Hugo Schuck Award - Honourable Mention].

3.   I. Postlethwaite, "Gain and phase margins for linear multivariable systems", Workshop on the Mathematical Theory of Networks and Systems, Virginia, May 1980.

4.   I. Postlethwaite, "Gain and phase margins for linear multivariable feedback systems", Allerton Conference on Computing, Control and Communication, Urbana, Illinois, 1980.

5.   I. Postlethwaite, "A design procedure for linear multivariable feed-back systems", IFAC Congress, Kyoto, August, 1981.

6.   I. Postlethwaite and Y.K. Foo, "Robustness with simultaneous pole and zero movement across the j -axis", IFAC Congress, Budapest, 1984.

7.   I. Postlethwaite and Y.K. Foo, "Representations of uncertainty and robustness", IASTED Conference, Athens, 1983.

8.   I. Postlethwaite and Y.K. Foo, "Representations of uncertainty and robustness tests for multivariable feedback systems", Multivariable Control, Ed. S.G. Tzafestas,151-160. 1984.

9.   Y.K. Foo and I. Postlethwaite, "Extensions of the small-  test for robust stability", CDC Conference, Las Vegas, 1984.

10.   I. Postlethwaite and Y.K. Foo, "A robustness test for distributed feedback systems", IMA Conference on Control Theory, 1984.

11.   A.P. Loh, G.O. Correa and I. Postlethwaite, "Estimation of uncertainty bounds for robustness analysis", IEE Conference 85", Cambridge,1985.

12.   Y.K. Foo and I. Postlethwaite, "Robustness analysis of feedback systems in the presence of large non-linear perturbations", IEE Conference "Control 85", Cambridge, 1985.

13.   M.S. Tombs and I. Postlethwaite, "On the relationship between robustness tests and their application to helicopter control system designs", IEE Conference "Control 85", Cambridge, 1985.

14.   I. Postlethwaite and Y.K. Foo, "All solutions, all-pass form solutions and the best solution to an H  - optimisation problem in robust control", Proceedings of 7th International Symposium on the Mathematical Theory of Networks and Systems, Stockholm, 1985. Modelling, Identification and Robust Control, Edited by Byrnes and Lindquist, North-Holland, 1986.
 
15. G.O. Correa and I. Postlethwaite, "Model uncertainty and linear system identification", Proceedings of IFAC Workshop on Model Error Concepts and Compensation, Boston, MA, 1985.

16.   I. Postlethwaite, D.-W. Gu and S.D. O'Young, "An H  Control System Design Package", CACSD-86, Workshop on Computer Aided Control System Design, Salford, 2-4 July, 1986.

17.   I. Postlethwaite, D.-W. Gu, S.D. O'Young and M.S. Tombs, "Industrial Control Systems Design Using H  Optimisation", 25th IEEE CDC, Athens,1986.

18.   A. Yue and I. Postlethwaite, "H  Design and the Improvement of Helicopter Handling Qualities", 13th European Rotorcraft Forum, Arles,1987.

19.   I. Postlethwaite, D.-W. Gu, S.D. O'Young and M.S. Tombs, "An application of H  Design and Some Computational Improvements", NATO Research Workshop, Groningen, 1986; Modelling, Robustness and Sensitivity Reduction in Control Systems, Edited by R. Curtain, Berlin, Springer,1987.

20.   I. Postlethwaite, S.D. O'Young, D.-W. Gu, and J. Hope, "H  Control System Design: A Critical Assessment Based on Industrial Applications", IFAC World Congress, Munich, July 1987.

21.   M.C. Tsai, S.D. O'Young, D.-W. Gu and I. Postlethwaite, "An Application of Super H  Optimisation in Multivariable Control System Design", American Control Conference, Atlanta, 1988.

22.   A. Yue and I. Postlethwaite, "H  Optimal Design for Helicopter Control", American Control Conference, Atlanta, 1988.

23.   A. Yue and I. Postlethwaite, "Robust Helicopter Control Laws for Handling Qualities Enhancement", Int. Conf. on Helicopter Handling Qualities and Control, London, 1988.

24.   D.-W. Gu, M.C. Tsai and I. Postlethwaite, "A Frame Approach to the H  Super Optimal Solution", CDC Conference, Tampa, Florida, Dec., 1989.

25.   I. Postlethwaite, M.C. Tsai and D.-W Gu, "Super-Optimal H  Design", International Symposium on the Mathematical Theory of Networks and Systems, Amsterdam, 1989.

26.   I. Postlethwaite, S.J. Williams, D. Maclay, D.J. Walker and P.R. Smith, "H  Multivariable Control Designs for Helicopters", Int. Symposium on Applications of Multivariable System Techniques, Bradford, 1990; Applications of Multivariable System Techniques, Ed. R. Whalley, 1990.
 
27. M.C. Tsai, I. Postlethwaite and E.J.M. Geddes, "Pole-Zero Cancellations and Closed-Loop Properties of an H  Mixed Sensitivity Design Problem - Part I: The Scalar Case", CDC Conference, Hawaii, 1990.

28.   I. Postlethwaite, M.C. Tsai and D.-W. Gu, "Weighting Function Selection in H  Design", Proc. 11th IFAC World Congress, Tallinn, 1990

29.   I. Postlethwaite, "MIMO Control System Design Using H  Optimization", 2nd Philips Conference on Applications of Systems and Control Theory, Scheveningen, The Netherlands, April, 1990.

30.   I. Postlethwaite and W. Feng, "Integrated H /Adaptive Robot Control",  IEEE Workshop on Intelligent Motion Control, Istanbul, Turkey, 1990.
 
31. D.J. Walker and I. Postlethwaite , "Full Authority Active Control System Design for a High Performance Helicopter", 16th European Rotorcraft Forum, Glasgow, September, 1990.

32.   I. Postlethwaite, J.-L. Lin, and D.-W. Gu, "A Loop Shaping Approach to Robust Performance for SISO Systems", Inst. M.C. Symposium on Robust Control System Design Using H  and Related Methods, Cambridge, March, 1991.

33.   D.J. Walker and I. Postlethwaite, "Discrete Time H  Control Laws for a High Performance Helicopter", Inst. M.C. Symposium on Robust Control System Design Using H  and Related Methods, Cambridge, March, 1991.

34.   I. Postlethwaite, D.-W. Gu, W. Feng and D.J. Walker, "Industrial applications of advanced multivariable control", IEE Int. Conf., Control 91, Edinburgh, March, 1991.

35.   I. Postlethwaite, "Basic Principles of Robust Control", Inst. M.C. Symposium on Robust Control System Design Using H  and Related Methods, Cambridge, March, 1991.

36.   I. Postlethwaite, J.-L. Lin and D.-W. Gu, "A classical loop shaping approach to robust performance". 1st European Control Conference, Grenoble, July, 1991.

37.   W. Feng, I. Postlethwaite and A.G. Corbett, "GEC Tetrabot Modelling and Simulation", 5th IFAC/IMACS Symposium on Computer Aided Design in Control Systems, Swansea, July, 1991.

38.   D.-W. Gu, I. Postlethwaite and J.-L. Lin, "Coal-fired power plant controller design using H  optimization". 1st IFAC Symposium on Design Methods of Control Systems, Zurich, September, 1991.

39.   W. Feng and I. Postlethwaite, "A simple robust control scheme for robot manipulators with only joint position measurements", Proc. Singapore Int. Conf. on Intelligent Control and Instrumentation, Singapore, 1992.

40.   D.J. Walker and I. Postlethwaite, "A full-flight-envelope high-bandwidth rotorcraft flight control system", Proc. 30th IEEE Conf. on Decision and Control, Brighton, December, 1991.

41.   D.J. Walker and I. Postlethwaite, "Discrete time H  control laws for a high performance helicopter", Proc. 30th IEEE Conf. on Decision and Control, Brighton, December, 1991.

42.   E.J.M. Geddes and I. Postlethwaite, "An H  based loop shaping method and m-synthesis", Proc. 30th IEEE Conf. on Decision and Control, Brighton, December, 1991.

43.   I. Postlethwaite, J.-L. Lin and D.W. Gu, "Robust control of a high purity distillation column using m-K iteration", Proc. 30th IEEE Conf. on Decision and Control, Brighton, December, 1991.

44.   B.W. Choi, D.W. Gu and I. Postlethwaite, "Low-order stabilizing controllers and pole-assignment", American Control Conference, Chicago, June, 1992.

45.   E.J.M. Geddes and I. Postlethwaite, "The weighted gap metric and structured uncertainty", American Control Conference, Chicago, June, 1138-1142, 1992.

46.   I. Postlethwaite and D.J. Walker, "Advanced control of high performance rotorcraft", IMA Conf. on Aerospace Vehicle Dynamics and Control, Cranfield Institute of Technology, September, 1992.

47.   E.J.M. Geddes and I. Postlethwaite. "Tandem Cold Rolling & Robust Multivariable Control", Institute of Materials, Modelling of Metal Rolling Processes, Symposium 5, December, 1992.

48.   D.J. Walker, I. Postlethwaite, J. Howitt and N.P. Foster, "Rotorcraft Flying Qualities Improvement Using Advanced Control", American Helicopter Society/NASA Conference, San Francisco, January, 1993.

49.   S.S. Ge and I. Postlethwaite, "Nonlinear Adaptive Control of Robots Including Motor Dynamics", Proc. American Control Conf., San Francisco, June, pp1423-1427, 1993.

50.   G. Murad, I. Postlethwaite, D.-W. Gu and J. F. Whidborne, "Robust Control of a Glass Tube Shaping Process", 2nd European Control Conf., Groningen, 2350-2355, June, 1993.

51.   I. Postlethwaite and S. Skogestad, "Robust Multivariable Control: Analysis, Design and Industrial Applications", 2nd European Control Conf., Groningen, June, 1993.

52.   W. Feng and I. Postlethwaite, "Robust Nonlinear H /Adaptive Control of Robot Manipulator Motion", Proc. IFAC World Congress, Sydney, July, 1993.

53.   I. Postlethwaite, J.F. Whidborne, G. Murad and D.-W. Gu, "Robust Control of the Benchmark Problem Using H  Methods and Numerical Optimization Techniques", Proc. IFAC World Congress, Sydney, July, 1993.

54.   G. Murad, I. Postlethwaite and D.-W. Gu, "Robust Control System Design Applied to a Glass Tube Shaping Process", Proc. IFAC World Congress, Sydney, July, 1993.

55.   D.-W. Gu, B.W. Choi and I. Postlethwaite, "Low-Order H  Sub- Optimal Controllers", Proc. IFAC World Congress, Sydney, July, 1993.

56.   E.J.M. Geddes and I. Postlethwaite, "Robust Control of a Tandem Cold Rolling Mill Using H  Optimization", Proc. 1st Int. Conf. on Modelling of Metal Rolling Processes, London, September, 1993.

57.   N.P. Foster, S.K. Spurgeon and I. Postlethwaite, "Robust Model- Reference Tracking Control with a Sliding Mode Applied to an ACT Rotorcraft", 19th European Rotorcraft Forum, Cernobbio, Italy, September, 1993.

58.   J.F. Whidborne, I. Postlethwaite and D.W. Gu, "Robust Controller Design Using H  Loop Shaping and the Method of Inequalities", Proc. 32nd IEEE Conf.on Decision and Control, San Antonio, 2163- 2168, December, 1993.

59.   W. Feng and I. Postlethwaite, "Algorithms for Computing (q,q)' in the Standard Robot Dynamic Equation", Symposium on Information\ Computer\Control, Beijing, China, February, 1994.

60.   I. Postlethwaite, D.-W. Gu, S.J. Goh and J. Whidborne, "An Expert System for Robust Controller Design", Proc. IEE Int. Conf. Control 94, 1170-1175, Warwick, 1994.

61.   A.W.A. Saif, I. Postlethwaite, D. Kavanoglu and D.-W. Gu, "Simultaneous Stabilization via Robust Stabilization Theory", Proc. IEE Int. Conf. Control 94, 214-219, Warwick, 1994.

62.   E.J.M. Geddes and I. Postlethwaite, "Multivariable Control of a High Performance Tandem Cold Rolling Mill", Proc. IEE Int. Conf. Control 94, 202-207, Warwick, 1994.

63.   R. Samar and I. Postlethwaite, "Multivariable Controller Design for a High Performance Aero-Engine", Proc. IEE Int. Conf. Control 94, 1312-1317, Warwick, 1994.

64.   I. Postlethwaite, N.P. Foster and D.J. Walker, "Rotorcraft Control Law Design for Rejection of Atmospheric Turbulence", Proc. IEE Int. Conf. Control 94, 1284-1289, Warwick, 1994.

65.   N.P. Foster, I. Postlethwaite, S.K. Spurgeon and D.J. Walker, "Robust Rotorcraft Controller Design for Turbulence Rejection", 20th European Rotorcraft Forum, Amsterdam, 1994.

66.   J.F. Whidborne, I. Postlethwaite and D.-W. Gu, "Robust Control of a Paper Machine", Proc. Control Systems 94, 235-241,Stockholm, May- June, 1994

67.   I. Postlethwaite and D. J. Walker, "The design of Helicopter Flight Control Systems using Advanced H  Control", Proc. American Control Conf, Vol 3, 3193-3197, Baltimore, June 1994.

68.   B.W. Choi, I. Postlethwaite and D.-W. Gu, "Controller Size Reduction in an H  Loop Shaping Design Procedure", 1st Asian Control Conference, Vol 2, 465-468, Tokyo, July, 1994.

69.   D.-W. Gu, R. Samar, B.W. Choi and I. Postlethwaite, "Model Reduction in Aero Engine Control", 1st Asian Control Conference, Vol 2, 457- 460, Tokyo, July, 1994.

70.   R. Samar, I. Postlethwaite and D.-W. Gu, "Applications of the Singular Perturbation Approximation of Balanced Systems", 3rd IEEE Conf. on Control Applications, Vol 3, 1823-1828, Glasgow, August, 1994.

71.   I. Postlethwaite and E.J.M. Geddes, "Gauge Control in Tandem Cold Rolling Mills; A Multivariable Case Study Using H  Optimization", IEEE Conf. on Control Applications, Vol 3, 1551-1556, Glasgow, 1994.

72.   R. Samar, G. Murad, I. Postlethwaite and D.-W. Gu, "A Discrete-Time H? Observer-Based Controller and its Application to an Aeroengine", Proc. American Control Conf., 3, 1931-1935, Seattle, June, 1995.

73.   J.F. Whidborne, D.-W. Gu and I. Postlethwaite, "Algorithms for the Method of Inequalities - a Comparative Study", Proc. American Control Conf., 5, 3393-3397, Seattle, June, 1995.

74.   A.A. Saif, I. Postlethwaite and D.-W. Gu, "Helicopter Control Design via a Simultaneous Stabilization Approach", Young Automation Conf. (YAC '95), Beijing, August, 1995.

75.   T. Fitzpatrick, D.-W. Gu, I. Postlethwaite, S. J. Goh and N. Measor, "An Expert System Architecture for Robust Controller Design", Proc. 3rd European Control Conf., 4, 3190-3195, Rome, September, 1995.

76.   G. Murad, I. Postlethwaite, D.-W. Gu and R. Samar, "On the Structure of an H  Two Degrees-of-Freedom Internal Model Based Controller and its Application to a Glass Tube Production Process", Proc. 3rd European Control Conf., 1, 595-600, Rome, September, 1995.

77.   I. Postlethwaite, R. Samar, B. W. Choi and D.-W. Gu, "A Digital Multi-Mode H  Controller for the Spey Turbofan Engine", Proc. 3rd European Control Conf, 4, 3881-3886, Rome, September, 1995.

78.   A.A. Saif, I. Postlethwaite and D.-W. Gu, "An Approach to the Simultaneous Stabilization of Multivariable Systems", Proc. 3rd European Control Conf., 3, 2585-2590, Rome, September, 1995.

79.   I. Postlethwaite, D.J. Walker and Alex J. Smerlas, "Robust control law design for the Bell-205 helicopter", 21st European Rotorcraft Forum, 3, 10.1-10.7, St Petersburg, August-September 1995.

80.   I. Postlethwaite, P.A. Atack and I.S. Robinson, "The improved control for an aluminium hot reversing mill using the combination of adaptive process models and an expert system", Davy Int. Conf. on the Control of Profile and Flatness, Birmingham, March 1996.

81.   M.M. Konstantinov, P. Hr. Petkov, D-W. Gu and I. Postlethwaite, "Perturbation bounds for Hankel Singular Values", Mathematical Theory of Networks and Systems, (no formal proceedings), St Louis, Missouri, June 1996.

82.   G. Murad, I. Postlethwaite and D-W Gu, "A robust design approach to integrated controls and diagnostics", IFAC World Congress, San Francisco, June-July 1996.

83.   C. Paterson, I. Postlethwaite, D.J. Walker, A Bashagha, "The development and evaluation of an H  induction motor controller", IFAC World Congress, San Francisco, Vol G, pp.499-504, June-July 1996.

84.   P. Hr. Petkov, M.M. Konstantinov, D-W Gu, I. Postlethwaite, "Optimal eigenstructure assignment of linear systems", IFAC World Congress, San Francisco, Vol C, pp109-114, June-July 1996.

85.   I. Postlethwaite, P.A. Atack and I.S. Robinson, "The improved control for an aluminium hot reversing mill using the combination of adaptive process models and an expert system", 6th Int. Conf., Metal Forming '96, Krakow, Poland, June 1996.

86.   C. Edwards and I. Postlethwaite, "Anti-windup and bumpless transfer schemes", UKACC, Control 96, Exeter, pp394-399, 2-5 Sept 1996.

87.   J.F. Whidborne, D-W Gu and I.Postlethwaite, "Simulated annealing for multi-objective control system design", UKACC, Control 96, Exeter, pp376-381, 2-5 Sept 1996.

88.   D-W Gu, T. Fitzpatrick, S.J. Goh, I. Postlethwaite and N. Measor, "Data organisation and rule base control issues in CACSD", pp 521-526, UKACC, Control 96, Exeter, 2-5 Sept 1996.

89.   D-W Gu, S.J. Goh, T. Fitzpatrick, I. Postlethwaite and N. Measor, "Application of an expert system for robust controller design", pp 1004-1009, UKACC, Control 96, Exeter, 2-5 Sept 1996.

90.   J.F. Whidborne, I. Postlethwaite and D-W Gu, "A mixed optimization approach to multiobjective computer-aided control system design", IEEE Symposium on CACSD, pp 309-314, Dearborn, Michigan, USA, September 1996.

91.   A.J. Smerlas, I. Postlethwaite and D.J. Walker, "Full envelope robust control law for the Bell 205 Helicopter", 22nd European Rotorcraft Forum, Brighton, pp105.1-105.6, September 1996.

92.   C. Edwards and I. Postlethwaite, "Anti-windup schemes with closed-loop stability considerations", ECC-97, Belgium, 1997.

93.   M. Konstantinov, P. Petkov, J. Kawelke, D-W. Gu & I. Postlethwaite, "Perturbation analysis of the H  control and filtering problems", ECC-97, Belgium, 1997.

94.   M. Konstantinov, P. Petkov, J. Kawelke, D-W. Gu & I. Postlethwaite, "Perturbation analysis of the H  control problem", 2nd Asian Control Conference, Seoul, Korea, 1997.

95.   A.J. Smerlas, I. Postlethwaite and D.J Walker, "Robust gain scheduling in helicopter control", 23rd European Rotorcraft Forum, Dresden, September 1997.

96.   X.D. Sun, I. Postlethwaite and D.J. Walker, "Gain scheduling control of helicopter longitudinal flight", 23rd European Rotorcraft Forum, Dresden, September 1997.

97.   G.A. Murad, I. Postlethwaite and D-W Gu, "Model reduction for non-minimal state-space systems", 36th IEEE Conference on Decision and Control, San Diego, December 1997.

98.   P.F. Weston and I. Postlethwaite, "A symmetric multivariable Popov criterion", 36th IEEE Conference on Decision and Control, San Diego, December 1997.

99.   I. Postlethwaite, A. Smerlas, D.J. Walker, A.W. Gubbels, S.W. Baillie, M.E. Strange, J. Howitt and R.I. Horton, "H  control: from desk-top design to flight test with handling qualities evaluation", American Helicopter Society 54th Annual Forum, Washington, May 1998.

100.   P.F. Weston and I. Postlethwaite, "Analysis and design of linear conditioning scheme for systems containing saturating actuators", NOLCOS 98, Enschede, July, 1998.

101.   I. Postlethwaite and D.G. Bates, "Integrated flight and propulsion control system design via H  loop shaping and partitioning", AIAA Guidance, Navigation and Control Conference, Boston, August 1998.

102.   A. Smerlas, I. Postlethwaite, D.J. Walker, M.E. Strange, J. Howitt, R.I. Horton, A.W. Gubbels, S.W. Baillie, "Design and Flight Testing of an H  Controller for the NRC Bell 205 Experimental Fly-By-Wire Helicopter", AIAA Guidance, Navigation and Control Conference, Boston, August 1998.

103.   A. Bartoszewicz and I. Postlethwaite, "Real time application of nonlinear control for robot manipulators", Proceedings 5th Symposium on Methods and Models in Automation and Robotics, Miedzydroje, Poland, Vol 3, pp 867-872, August, 1998.

104.   I. Postlethwaite and D.G. Bates, "Robust integrated flight and propulsion control (IFPC) system design for the VAAC Harrier STOVL aircraft", Control 98, Swansea, September, 1998.

105.    X.D. Sun and I. Postlethwaite, "Affine LPV modelling and its use in gain-scheduled helicopter control", Control 98, Swansea, September, 1998.

106.   D.G. Bates, S.L. Gatley, I. Postlethwaite, L. Gillett, D. Littleboy, "Robust Integrated Flight and Propulsion Control (IFPC) of an Experimental STOVL Aircraft", 37th IEEE Conference on Decision and Control, Tampa, December, 1998.

107.   I. Postlethwaite, A. Smerlas, D.J. Walker,  M.E. Strange, J. Howitt, A.W. Gubbels,  "Evaluating H  controllers on the NRC fly-by-wire helicopter", American Helicopter Society, 55th Annual Forum, Montreal, May, 1999.

108.   I. Postlethwaite, I.K. Konstantopoulos, X.D. Sun, D.J. Walker, A.G. Alford, "Design, flight simulation, and handling qualities evaluation of an LPV gain-scheduled helicopter flight control system", European Control Conference, ECC 99, Karlsruhe, Aug-Sept, 1999.

109.   V. Tsachouridis and I. Postlethwaite, "An algorithm for the numerical solution of an important algebraic matrix equation in control system design", European Control Conference, ECC 99, Karlsruhe, Aug-Sept, 1999.

110.   A. Smerlas, I. Postlethwaite, D.J. Walker, "H  loop shaping: the Bell 205 helicopter case study", AIAA Guidance Navigation and Control Conference, Portland, Oregon, August, 1999.

111.   V.A. Tsachouridis and I. Postlethwaite, "Robust anti-windup controllers for a synchronous electric generator infinite bus power system under exciter and turbine saturation", 34th Universities Power Engineering Conference, UPEC 99, 2, 426-429, Leicester, September 1999.

112.   D.G. Bates, S.L. Gatley, I. Postlethwaite, A.J. Berry, "Integrated flight and propulsion control system design using H  loop-shaping techniques", Proc. 38th IEEE Conference on Decision and Control, Phoenix, Arizona, 1523-1528, December 1999.

113.   M.J. Hayes, D.G. Bates, S.L. Gatley, I. Postlethwaite, "Stability robustness analysis of an integrated flight and propulsion controller using the structured singular value", Proc. 38th IEEE Conference on Decision and Control, Phoenix, Arizona, 4529-4530, December 1999.

114.   E. Prempain, I. Postlethwaite, "Extended projection conditions for some structured LMI problems", 38th IEEE Conference on Decision and Control, Phoenix, Arizona, December 1999.

115.   A. W. Gubbels, S.W. Baillie, D.J.Walker and I. Postlethwaite, "Practical aspects of implementing H  controllers on a FBW research helicopter", NATO Symposium, Braunschweig, Germany, May 2000.

116.   M.C. Turner and I. Postlethwaite, "Robustness analysis of general linear conditioning techniques for stable systems", Workshop on systems with time domain constraints, Eindhoven, August, 2000.

117.   Y. Cao, W. Browne, I. Postlethwaite, P. Atack, C. Lane, "System architecture for aluminum hot rolling mill supervisory control",  Asian Control Conference, China, 4-7 July 2000.

118.   W. Browne, Y. Cao, I. Postlethwaite, T. Ozen, P. Atack, C. Lane, "Design of knowledge-based intelligent supervisory control system for an aluminum hot reversing mill", UKACC Control 2000, Cambridge, September 2000.

119.   D.G. Bates and I. Postlethwaite, "Quantifying robustness of uncertain feedback control systems using Nichols exclusion regions and the structural singular value", UKACC Control 2000, Cambridge, September 2000.

120.   D.G. Bates, S.L. Gatley and I. Postlethwaite, "Robust control of V/STOL aircraft in transition flight using differential thrust vectoring", UKACC Control 2000, Cambridge, September 2000.

121.   E. Prempain and I. Postlethwaite, "A gain scheduling design for the Lynx MK7", UKACC Control 2000, Cambridge, September 2000.

122.   M.C. Turner, I. Postlethwaite and D.J. Walker, "Nonlinear tracking in constrained input linear systems", UKACC Control 2000, Cambridge, September 2000.

123.  M.J. Hayes, D.G. Bates, S.L. Gatley and I. Postlethwaite, "Performance robustness analysis of an integrated flight and propulsion controller using the structured singular value", UKACC Control 2000, Cambridge, September 2000.

124.   M.C. Turner and I. Postlethwaite, "The application of monotone stability to certain standard feedback interconnections", Proc. 39th IEEE Conference on Decision and Control, Sydney, 2000.

125.   G. Grimm, I. Postlethwaite, A.R. Teel, M.C. Turner, L. Zaccarian, "Linear matrix inequalities for full and reduced order anti-windup synthesis", American Control Conference, Washington DC, June 2001.

126.   S.L. Gatley, D.G. Bates and I. Postlethwaite, "An engine limiting and anti-windup scheme for a partitioned IFPC system", AIAA Navigation, Guidance and Control Conference, Montreal, August 2001.

127.   S.L. Gatley, D.G. Bates and I. Postlethwaite, "Partitioning and redesign of H  loopshaping integrated flight and propulsion control systems", AIAA Navigation, Guidance and Control Conference, Montreal, August 2001.

128.   N. Aouf, D.G. Bates and I. Postlethwaite, "Observer form scheduling of an H  loopshaping integrated flight and propulsion control law", AIAA Navigation, Guidance and Control Conference, Montreal, August 2001.

129.   M.C. Turner, D.G. Bates and I. Postlethwaite, "A conditioning strategy for performance improvement of an integrated flight and propulsion control system for a V/STOL aircraft", European Control Conference, Porto, September 2001.

130.   E. Prempain, I. Postlethwaite and D. Vorley, "A gain scheduled autopilot design for a bank-to-turn missile", European Control Conference, Porto, September 2001.

131.   G. Grimm, I. Postlethwaite, A.R. Teel, M.C. Turner, L. Zaccarian, "Case studies using linear matrix inequalities for optimal anti-windup synthesis", European Control Conference, Porto, September 2001.

132.   S.L.Gatley, D.G.Bates, M.J. Hayes and I. Postlethwaite, "Robustness analysis of an integrated flight and propulsion control system using the   and the  -gap metric", European Control Conference, Porto, September 2001.

133.   T. Ozen, D.W. Gu, I. Postlethwaite, W. Browne and L. Yao, "Optimisation of soaking pit/rolling mill process at British Aluminum Plate", IFAC Symposium Automation in Mineral, Mining and Metal Processing, Japan, September 2001.

134.   G. Grimm, J. Hatfield, I. Postlethwaite, A.R. Teel, M.C. Turner and L. Zaccarian, "Experimental results in optimal linear anti-windup compensation", Proc. 40th IEEE Conference on Decision and Control, Orlando, December 2001.

135.   I. Postlethwaite, E. Prempain, E. Turkoglu, M. Turner, W. Gubbels and K. Ellis, "Design and flight test of various H  controllers for the Bell 205" (invited), Nato Symposium: Challenges in dynamics, system identification, control and handling qualities for land, air, sea and space vehicles, Berlin, May 2002.

136.   T. Ozen, D.W. Gu, I. Postlethwaite, W. Browne, L. Yao, "Neural network models for the prediction of aluminum heating and rolling times", Int Conf on Thermomechanical Processing: Mechanics, Microstructure & Control, Sheffield, June, 2002.

137.   W. Browne, L. Yao, T. Ozen, I. Postlethwaite, P. Atack, C. Lane, "Fusing data mining and knowledge elicitation for the supervisory control of an aluminum plate mill", (Poster) Int Conf on Thermomechanical Processing: Mechanics, Microstructure & Control, Sheffield, June, 2002; subsequently in Conference Proceedings pp 263-269, 2003.

138.   T. Mannchen, D.G. Bates, I. Postlethwaite, "Worst-case uncertain parameter combinations for flight control systems analysis", IFAC World congress, Barcelona, July, 2002.

139.   M.C. Turner, I. Postlethwaite, "Local anti-windup compensation using output limiting", IFAC World Congress, Barcelona, July, 2002.

140.   I. Postlethwaite, E. Prempain, E. Turkoglu, M.C. Turner, "Various H  controllers for the Bell 205:   design and flight test", IFAC World Congress, Barcelona, July, 2002.

141.   E. Prempain, I. Postlethwaite, "H  design for an induction motor", IFAC World Congress, Barcelona, July, 2002.

142.   E. Prempain, I. Postlethwaite, D. Vorley, "Autopilot study for an asymmetric airframe, IFAC World Congress, Barcelona, July, 2002.

143.   M.C. Turner and I. Postlethwaite, "Improving sector based results for override control, anti-windup compensation and related problems" (invited), 8th IEEE Conference on Methods and Models in Automation and Robotics, MMAR 2002, Szczeccin, Poland, September, 2002.

144.   M.C. Turner, N. Aouf, D.G. Bates, I. Postlethwaite and B. Boulet, "A switching scheme for full-envelope control of a V/STOL aircraft using LQ bumpless transfer", IEEE Conference on Control Applications, Glasgow, September, 2002.

145.   G. Herrmann, M.C. Turner, I. Postlethwaite and G. Guo, "Application of a novel anti-windup scheme  to a HDD-dual-stage actuator" American Control Conference, Colorado, June 2003. [Best presentation in session].

146.   M.C. Turner, G. Herrmann and I. Postlethwaite, "Discrete-time anti-windup: part 1 - stability and performance", European Control Conference, Cambridge, September, 2003.

147.   G. Herrmann, M.C. Turner and I. Postlethwaite, "Discrete-time anti-windup: part 2 - extension to the sampled data case", European Control Conference, Cambridge, September, 2003.

148.   L. Yao, W. Browne, I. Postlethwaite, T. Ozen, P. Atack, M. Mar and S. Lowes, "An architecture for intelligent knowledge-based supervisory control of rolling mills", IFAC Workshop on New Technologies for Automation of Metallurgical Industry, Shanghai, Oct, 2003.

149.   M. C Turner, G. Herrmann and I. Postlethwaite, "Accounting for uncertainty in anti-windup synthesis", American Control Conference, Boston, June/July, 2004. [Best presentation in session].

150.   D. G Bates, T. Mannchen, R. Kureemun and I. Postlethwaite, " -tools for the clearance of flight control laws", American Control Conference, Boston, June/July, 2004.

151.   M.C. Turner, I. Postlethwaite and G. Herrmann, "Further results on full-order anti-windup synthesis: exploiting the stability multiplier", 6th Annual Symposium on Nonlinear Control Systems, NOLCOS 04, Stuttgart, September 2004.

152.   S.L. Gatley, D.G. Bates and I. Postlethwaite, "H  control and anti-windup compensation of the nonlinear Alstom gasifier model", UKACC Control 2004, Bath, September 2004.

153.   D.W. Gu, W. Kamal and I. Postlethwaite, "A UAV Waypoint Generator", AIAA 1st Intelligent Systems Technical Conference, Chicago, September, 2004.

154.   A. Marcos, D.G. Bates and I. Postlethwaite,  "Flight dynamics applications of a new symbolic matrix order reduction algorithm", Int. Conf. on Polynomial Systems Solving, Paris, 2004.

155.   G. Herrmann, M.C. Turner and I. Postlethwaite, "Performance oriented anti-windup for a class of neural network controlled systems", IEEE Conference on Cybernetics and Intelligent Systems, Singapore, December, 2004.

156.   P.P. Menon, J. Kim, D.G. Bates and I. Postlethwaite, "Improved clearance of flight control laws using hybrid optimization", IEEE Conference on Cybernetics and Intelligent Systems, Singapore, December, 2004.

157.   G. Herrmann, M.C. Turner and I. Postlethwaite, "Some new results on anti-windup-conditioning using the Weston-Postlethwaite approach", 43rd IEEE Conference on Decision and Control, Bahamas, December, 2004.

158.   E. Prempain and I. Postlethwaite, "Static H  loop shaping control of a fly-by-wire helicopter", 43rd IEEE Conference on Decision and Control, Bahamas, December 2004.

159.   M.C. Turner, G. Herrmann and I. Postlethwaite,  "Improving local anti-windup performance : Preliminary results on a two-stage approach", IFAC World Congress, Prague, 2005.

160.   J. Sofrony, M.C. Turner and I. Postlethwaite, "Anti-windup synthesis using Riccati equations", IFAC World Congress, Prague, 2005.

161.  W.A. Kamal, D-W. Gu and I. Postlethwaite, "MILP and its applications in flight path planning", IFAC World Congress, Prague, 2005.

162.   W.A. Kamal, D-W. Gu and I. Postlethwaite, "A decentralized probabilistic framework for the path planning of autonomous vehicles", IFAC World Congress, Prague, 2005.

163.   G. Herrmann, M.C. Turner and I. Postlethwaite,  "A robust override scheme enforcing strict output constraints for a class of strictly proper systems", IFAC World Congress, Prague, 2005.

164.   P.P. Menon, D.G. Bates and I. Postlethwaite, "Hybrid optimisation schemes for the clearance of flight control laws", IFAC World Congress, Prague, 2005.

165.   P.P. Menon, D.G. Bates and I. Postlethwaite, "Computation of worst-case pilot inputs for clearance of flight control laws", IFAC World Congress, Prague, 2005.

166.   J. Kim, D.G. Bates and I. Postlethwaite, "Complex-step gradient approximation for robustness analysis of nonlinear systems", IFAC World Congress, Prague, 2005.

167.   J. Kim, D.G. Bates and I. Postlethwaite, "Nonlinear robust performance analysis of an aeroelastic system", IFAC World Congress, Prague, 2005.

168.   A. Marcos, D.G. Bates and I. Postlethwaite,  "Exact nonlinear modelling using symbolic llinear fractional transformations", IFAC World Congress, Prague, 2005.

169.   A. Marcos, D.G. Bates and I. Postlethwaite,  "A multivariate polynomial matrix order-reduction algorithm for linear fractional transformation modelling", IFAC World Congress, Prague, 2005.

170.    P.A. Roberts, M.C. Turner, G. Medrano-Cerda, I. Postlethwaite and P. Rees, "Multivariable H    controller design for a 2.4m telescope", IFAC World Congress, Prague, 2005.

171.   J. Sofrony, M.C. Turner and I. Postlethwaite, "Anti-windup synthesis for systems with rate-limits: a Riccati equation approach", Society of Instrument and Control Engineers (SICE) Annual Conference, Japan, 2005. [SICE Annual Conference International Award 2005, JPYen 100,000].

172.   J. Kim, D.G. Bates, I. Postlethwaite, L Ma and P.A. Iglesias, "Robustness analysis of biochemical networks using  -analysis and hybrid optimization", joint IEEE CDC and European Control Conference, Seville, December, 2005.

173.   J. Kim, D.G. Bates and I. Postlethwaite, "Nonlinear robust performance analysis using gradient-based    optimization - an aeroelastic case-study", joint IEEE CDC and European Control Conference, Seville, December, 2005.

174.   W.A. Kamal, D.W. Gu and I. Postlethwaite, "Real time trajectory planning for UAVs using MILP", joint IEEE CDC and European Control Conference, Seville, December, 2005.

175.   A. Marcos, D.G. Bates and I. Postlethwaite, "Control oriented uncertainty modelling using mu sensitivities and skewed mu analysis tools", joint IEEE CDC and European Control Conference, Seville, December, 2005.

176.   P.P. Menon, D.G. Bates and I. Postlethwaite, "Hybrid evolutionary optimization methods for the clearance of nonlinear flight control laws", joint IEEE CDC and European Control Conference, Seville, December, 2005.

177.   S. Byndoor, W. Browne, L. Yao , I Postlethwaite and S Lowes, "Control of long plate quality: measurement system and simulation", 14th IFAC Symposium on System Identification, Newcastle, Australia, March, 2006.

178.   P.P. Menon, M. Lowenberg, D.G. Bates and I. Postlethwaite, "Nonlinear clearance of closed loop aircraft model for limit cycle prediction", International Conference on Nonlinear Problems in Aviation and Aerospace, Budapest, June 2006. (Abstract only; invited paper to follow).

179.  G. Herrmann, B. Hredzak, M.C. Turner, I. Postlethwaite and G. Guo, "Improvement of a novel dual-stage large-span track-seeking and track-following method using anti-windup compensation, American Control Conference, Minneapolis, June, 2006.

180.   A. Marcos, M.C. Turner and I. Postlethwaite, "High-performance architecture for design and analysis of           robust anti-windup compensators", American Control Conference, Minneapolis, June, 2006.

181.   P.P. Menon, D.G. Bates and I. Postlethwaite, "A deterministic hybrid optimization algorithm for nonlinear flight control systems analysis", American Control Conference, Minneapolis, June, 2006.

182.   P.P. Menon, D.G. Bates and I. Postlethwaite, "Robustness analysis of nonlinear flight control laws over continuous regions of the flight envelope", IFAC Symposium on Robust Control System Design, Toulouse, July, 2006.

183.   A. Marcos, M.C. Turner, D.G. Bates and I. Postlethwaite, "Robustification of static and low order anti-windup designs", IFAC Symposium on Robust Control System Design, Toulouse, July, 2006.

184.   A. Marcos, M. Jeanneau, D.G. Bates and I. Postlethwaite, "Aircraft modelling for nonlinear and robust control design and analysis", IFAC Symposium on Robust Control System Design, Toulouse, July, 2006.

185.   M.C. Turner, G.Herrmann, P.P. Menon, D.G. Bates and I. Postlethwaite, "Anti-windup synthesis for nonlinear dynamic inversion controllers", IFAC Symposium on Robust Control System Design, Toulouse, July, 2006.

186.    I. Postlethwaite, M.C. Turner and G. Herrmann, "Robust Control Applications" (Plenary lecture), IFAC Symposium on Robust Control System Design, Toulouse, July, 2006.

187.   P. March, M.C. Turner, G.Herrmann and I. Postlethwaite, "Frequency weighted L2 gain optimization for improved anti-windup performance", International Conference Control  2006, Glasgow, June-July, 2006.

188.   J. Kim, D.G. Bates, I. Postlethwaite, P. Heslop-Harrison, K-H Cho, "Robust identification of biochemical networks from noisy measurements" (Poster presentation), 7th International Conference on Systems Biology, Yokohama, October, 2006.

189.   O. Brieger, M. Kerr, D. Leibling, I. Postlethwaite, J. Sofrony and M.C. Turner, "Flight testing of a rate saturation compensation scheme on the ATTAS aircraft", Deutscher Luft- und Raumfahrtkongress, Braunschweig, November, 2006.

190.   J. Sofrony, M.C. Turner, and I. Postlethwaite, O.M. Brieger and D. Leissling, "Anti-Windup synthesis for PIO avoidance in an experimental aircraft", 45th IEEE Conference on Decision and Control, San Diego, December, 2006.

191.    P.P. Menon, G. Herrmann, M.C. Turner, D.G. Bates and I. Postlethwaite, "General anti-windup synthesis for input constrained nonlinear systems using nonlinear dynamic inversion", 45th IEEE Conference on Decision and Control, San Diego, December, 2006.

192.   K. Natesan, D-W Gu, I. Postlethwaite and J Chen, "Design of flight controllers based on a simplified LPV model of a UAV" 45th IEEE Conference on Decision and Control, San Diego, December, 2006.

193.   Y. Kim, D.W Gu and I. Postlethwaite, "Real-time optimal time-critical assignment for UAVs", (abstract only), 7th International Conference on Cooperative Control and Optimization, Gainesville, Florida, 31 January -2 February, 2007; paper subsequently published in Advances in Cooperative Control and Optimization, edited by MJ Hirsch, P Pardalos, R Murphey and D Grundel, Lecture Notes in Control and Information Sciences, Springer, 2007.

194.   L. Yao, D.W. Gu and I. Postlethwaite, "A simulation environment for control and monitoring schemes in network enabled systems", Conference on Systems Engineering For Future Capability, SEIC, Loughborough, 12-13 February, 2007.

195.   P. Li, I. Postlethwaite and M.C. Turner, "Subspace-based system identification for helicopter dynamic modeling", to appear American Helicopter Society, 63rd Annual Forum, Virginia Beach, 1-3 May, 2007.

196.   P.P. Menon, D.G. Bates, I. Postlethwaite and S Bennani, "Worst-case analysis of flight control laws for re-entry vehicles", to appear 17th IFAC Symposium on Automatic Control in Aerospace, Toulouse, 25-29 June, 2007.

197.   Y. Kim, D.W Gu and I. Postlethwaite, "Optimal average consensus on multi-agent networks", to appear17th IFAC Symposium on Automatic Control in Aerospace, Toulouse, 25-29 June, 2007.

198.   A. Nair, M.C. Turner and I. Postlethwaite, "Single-loop limited authority control: an architectural study", European Control Conference, Kos, 2-5 July, 2007.

199.   Y. Kim, D.W Gu and I. Postlethwaite, "Tight formation flying and sphere packing", American Control Conference, New York, 11-13 July, 2007.

200.   O. Brieger, M. Kerr, D. Leibling, I. Postlethwaite, J. Sofrony and M.C. Turner, "Anti-windup compensation of rate saturation in an experimental aircraft", American Control Conference, New York, 11-13 July, 2007.

201.   P. Li, I. Postlethwaite and M.C. Turner, "Parameter estimation techniques for helicopter dynamic modelling", American Control Conference, New York, 11-13 July, 2007.

202.   M.L. Kerr, M.C. Turner and I. Postlethwaite, "Stability criteria for rate limited Lur'e systems with connections to magnitude limits and anti-windup", 7th IFAC Symposium on Nonlinear Control Systems, NOLCOS 07, Pretoria, 22-24 August, 2007.

203.   D.G. Bates, S. Fekri, P.P. Menon and I. Postlethwaite, " On the robustness analysis of nonlinear systems subject to time-invariant and/or time-varying uncertainty", IEEE Conference on Evolutionary Computing, Singapore, 25-28 September, 2007.

204.   P.P. Menon, D.G. Bates and I. Postlethwaite, "Deterministic versus evolutionary optimization methods for nonlinear robustness analysis of flight control laws", IEEE Conference on Evolutionary Computing, Singapore, 25-28 September, 2007.

205.   S. Fekri, D.G. Bates and I. Postlethwaite, "Linear vs nonlinear robustness analysis: a case study", IEEE Conference on Control Applications, Singapore, 1-3 October, 2007.

206.   P.P. Menon, E. Prempain, I. Postlethwaite and D.G. Bates, "A low-order linear parametric varying H  loop shaping controller for a re-entry vehicle", GNC 2008, 7th International ESA Conference on Guidance, Navigation & Control Systems, Tralee, Ireland, 2-5 June, 2008.

207.   E. Prempain and I. Postlethwaite, "A feedforward control synthesis approach for LPV systems", American Control Conference, Seattle, USA, 11-13 June, 2008.

208.   M.L. Kerr, I. Postlethwaite, J.I.S. Sofrony and M.C. Turner, "Flight testing of low-order anti-windup compensators for improved handling and PIO suppression", American Control Conference, Seattle, USA, 11-13 June, 2008.

209.   I. Samy, I. Postlethwaite, D-W. Gu and J. Green, "Wind tunnel investigation of a flush air data sensing system with application on a fixed wing micro air vehicle", International Symposium on UAVs, Florida, USA, June, 2008. [Abstract and presentation only].

210.   E. Prempain and I. Postlethwaite, "A constant D-Scale mu-synthesis approach based on non-smooth optimization", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

211.   P.P. Menon, I. Postlethwaite, S. Bennani and D.G. Bates, "Multi-objective worst-case analysis of a re-entry vehicle control law", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

212.   P.P. Menon, G. Herrmann, M.C.Turner, M. Lowenberg, D.G.Bates and I. Postlethwaite, "Nonlinear dynamic inversion based anti-windup - an aerospace application", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

213.   M.L. Kerr, M.C.Turner and I. Postlethwaite, "Practical approaches to low-order anti-windup compensator design: a flight control comparison", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

214.   S. Fekri, D.W.Gu, I. Postlethwaite and M. Athans, "Robust adaptive fault-tolerant control of the F-14 aircraft under sensor failures", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

215.   Y. Kim, D-W Gu and I. Postlethwaite, "Fault-tolerant cooperative target tracking in distributed UAV networks", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

216.   K. Natesan, D-W Gu and I. Postlethwaite, "Trajectory tracking controller design for an unmanned air vehicle", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

217.   P. Li, I. Postlethwaite and M.C. Turner, "Estimation of the uncertainty in a helicopter dynamic model identified by the subspace-based method using bootstrap techniques", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

218.   M.C.Turner, G. Herrmann and I. Postlethwaite, "Improving sector-based results for systems with deadzone nonlinearities", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

219.   J. Kim, J.-S. Kim, P. Heslop-Harrison, I. Postlethwaite and D.G. Bates, "Identification of optimality and robustness in dictyostelium external signal receptors", 17th IFAC World Congress, Seoul, Korea, 6-11 July, 2008.

220.   D.A. Savic, J.B. Boxall, B. Ulanicki, Z. Kapelan, C. Makropoulos, R. Fenner, K. Soga, I.W. Marshall, C. Maksimovic, I. Postlethwaite, R. Ashley and N. Graham, "Project Neptune: improved operation of water distribution networks", 10th International Water Distribution System Analysis conference, Kruger National Park, South Africa, 17-20 August, 2008.

221.   P.P. Menon, G. Herrmann, M.C. Turner, M. Lowenberg, D.G. Bates and I Postlethwaite, "Dynamic wind tunnel implementation of nonlinear dynamic inversion-based anti-windup scheme",  AIAA. Guidance Navigation and Control Conference, Hawaii, 18-21 August, 2008.

222.   I. Samy, I. Postlethwaite and D-W. Gu, "Detection of additive sensor faults in an unmanned air vehicle model using neural networks", UKACC, Manchester, September, 2008.

223.   I. Postlethwaite, D.-W.Gu, Y Kim, K. Natesan, M. Kothari, N. Khan and R Omar, "A robust fault-tolerant tracking scheme", RNEC08, Realising network enabled capability, Leeds, 13-14 October, 2008.

224.   A. Murgu, I. Postlethwaite, C. Edwards and D.-W.Gu, "Communication and control designs for reconfigurable systems", RNEC08, Realising network enabled capability, Leeds, 13-14 October, 2008.

225.   I. Samy, I. Postlethwaite and D-W. Gu, "Neural network based sensor validation scheme demonstrated on an unmanned air vehicle", 47th IEEE Conference on Decision and Control, Cancun, Mexico, December, 2008.

226.   P. Li, I. Postlethwaite, E. Prempain and B. Ulanicki, "A new control scheme for improving the performance of pressure reducing valves in water distribution networks", 8th International Conference on Hydroinformatics 2009, Conception, Chile, 12-16 January 2009.

227.   A. Murgu, I. Postlethwaite, D.-W.Gu, and C. Edwards, "Topology Information Control in Feedback Based Reconfiguration Processes", International Conference on the Dynamics of Information Systems, Gainesville, Florida, 28-30 January 2009.

228.   M.Z.Q. Chen, Z. Cheng, H.T. Zhang, T. Zhou, and I. Postlethwaite, "Collective Aggregation Pattern Dynamics Control via Attractive/Repulsive Function," in Complex 2009, Part II, Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, vol. 5, 2064-2077, Springer-Verlag, 2009; conference 23-25 February, 2009.

229.   P. Li, I. Postlethwaite, E. Prempain, B. Ulanicki and R. Patel, "Identification of the hydraulic model from operational measurements for supervisory pressure control", World Environmental & Water Resources Congress, Kansas, 17-21 May 2009.

230.   R. Ahmed, D.-W. Gu, and I. Postlethwaite, "A simple stabilization approach for nonlinear spacecraft attitude model using a Lyapunov model", ICEAE 2009, International Conference and Exhibition on Aerospace Engineering, Bangalore, 18-22 May 2009.

231.   M. Kothari, I. Postlethwaite and  D.-W. Gu, "A sub-optimal path planning algorithm using rapidly-exploring random trees", ICEAE 2009, International Conference and Exhibition on Aerospace Engineering, Bangalore, 18-22 May 2009.

232.   M.C.Turner, I. Postlethwaite and M.L. Kerr, "On the existence of stable, causal multipliers for systems with slope-restricted nonlinearities", Control Conference, St Louis, Missouri, USA, 10-12 June, 2009.

233.   A. Murgu, I. Postlethwaite, D.-W. Gu and C. Edwards, "Information Signalling and Scaling in Dynamic Reconfiguration Processes", ReMAR-2009, Reconfigurable Mechanisms And Robots, Proceedings edited by Dai, Zoppi and Kong, 291-298, 22-24 June, 2009.

234.   R. Ahmed, D.-W. Gu, and I. Postlethwaite, "Attitude tracking of a rotating rigid body system", IASTED International Conference on Control and Applications, Cambridge, 13-15 July 2009.

235.   M.L. Ker, A. Marcos, L.F. Penin, O. Brieger,  I. Postlethwaite and M.C. Turner, "Piloted assessment of a fault diagnosis algorithm on the ATTAS aircraft",  AIAA Guidance, Navigation and Control Conference, Chicago, 10-13 August, 2009.

236.   P.P. Menon, E. Prempain, I. Postlethwaite, D.G. Bates and S. Bennani, "An LPV loop shaping controller design for the NASA-HL-20 re-entry vehicle", AIAA Guidance, Navigation and Control Conference, Chicago, 10-13 August, 2009.

237.   P.P. Menon, E. Prempain, I. Postlethwaite, D.G. Bates and S. Bennani, "Nonlinear worst-case analysis of an LPV controller for the approach-phase of a re-entry vehicle", AIAA Guidance, Navigation and Control Conference, Chicago, 10-13 August, 2009.

238.   A.J. Berry, J Howitt, I. Postlethwaite and D.-W. Gu, "Situation aware trajectory tracking for micro air vehicles in obstacle-rich environments", AIAA Guidance, Navigation and Control Conference, Chicago, 10-13 August, 2009.

239.   P. Li, I. Postlethwaite, V. Kadirkamanathan and M. Z. Chen, "A Rao-Blackwellised particle filter-based likelihood ratio approach to fault diagnosis for linear stochastic systems", European Control Conference, Budapest, 23-26 August, 2009.

240.   M. Kothari, D.-W. Gu and I. Postlethwaite, "An intelligent suboptimal path planning algorithm using rapidly-exploring random trees", European Control Conference, Budapest, 23-26 August, 2009.

241.   J. Kim, J.-S. Kim, I. Postlethwaite, P. Heslop-Harrison and D.G. Bates, "Validation of a model of regulation in the tryptophan operon against multiple experiment data using global optimisation", SICE-ICCAS, Fukuoka, Japan, 25-28 August, 2009.

242.   M.C. Turner, M. Kerr and I. Postlethwaite, "On the existence of multipliers for MIMO systems with slope-restricted nonlinearities", SICE-ICCAS, Fukuoka, Japan, 25-28 August, 2009.

243.   P. Li, I. Postlethwaite, E. Prempain and B. Ulanicki, "Flow modulated dynamic pressure control in water distribution systems", to appear CCWI 2009, Sheffield, 1-3 September, 2009.

244.   P.P. Menon, C. Edwards and I. Postlethwaite, "L2 optimal decentralised static output feedback stabilisation of a network of dynamical systems", 7th IEEE Conference on Control and Automation, Christchurch, 9-11 December, 2009.

245.   M. Kothari, I. Postlethwaite and D.-W. Gu, "Multi-UAV path planning in obstacle rich environments using rapidly-exploring random trees", 48th IEEE Conference on Decision and Control, Shanghai, 16-18 December, 2009.

246.   R. Ahmed, D.-W. Gu and I. Postlethwaite, "A case study on spacecraft attitude control", 48th IEEE Conference on Decision and Control, Shanghai, 16-18 December, 2009.

247.   S. Fekri, D.-W. Gu and I. Postlethwaite, "Lateral imbalance detection on a UAV based on multiple models", 48th IEEE Conference on Decision and Control, Shanghai, 16-18 December, 2009.

248.   A.J. Berry, J Howitt, I. Postlethwaite and D.-W. Gu, "Enabling micro air vehicle operation in increasingly complex obstacle-rich environments", AIAA Infotech@Aerospace Conference, Atlanta, 20-22 April 2010.

249.   R. Sharma, M. Kothari, C.N. Taylor and I. Postlethwaite, "Cooperative target-capturing with incomplete target information and network time delay", American Control Conference, Baltimore, 30 June to 2 July, 2010.

250.   M.C. Turner, M.L. Kerr, I. Postlethwaite and J.I. Sofrony, "L2 gain bounds for systems with slope-restricted nonlinearities", American Control Conference, Baltimore, 30 June to 2 July, 2010.

251.   M.L. Kerr, M.C. Turner and I. Postlethwaite, "Robust anti-windup control of SISO systems", American Control Conference, Baltimore, 30 June to 2 July, 2010.

252.   E. Prempain, I. Postlethwaite and D.G. Bates, "Switched LPV loop shaping controller design for the NASA HL20 re-entry vehicle", AIAA Guidance Navigation and Control Conference, Toronto, 2-5 August, 2010.

253.   A.J. Berry, J Howitt, D.-W. Gu and I. Postlethwaite, "Continuous local motion planning and control for micro-air-vehicles in complex environments", AIAA Guidance Navigation and Control Conference, Toronto, 2-5 August, 2010.

254.   P. Li, I. Postlethwaite, E. Prempain and B. Ulanicki, "Gain scheduling-based dynamic pressure control for water distribution systems", 9th International Conference on Hydroinformatics, Tianjin, China, September, 2010.

255.   K.P.B. Chandra, D.-W. Gu and I. Postlethwaite, "SLAM using EKF, EH-infinity and mixed EH2/H-infinity filters", IEEE Multi-conference on Systems and Control, Yokohama, 8-10 September, 2010.

256.   R.M. Morales, M.C. Turner and I. Postlethwaite, "Force tracking system using a semi-active valve lag damper for vibration reduction in helicopters", UKACC Int. Conference on Control, Control 2010, Coventry, 7-10 September, 2010.

257.   I. Samy, I-S Fan, I. Postlethwaite and D.-W. Gu, "Multiple SFDIA using an EMRAN RBF neural network - demonstrated on a nonlinear UAV model", UKACC Int. Conference on Control, Control 2010, Coventry, 7-10 September, 2010.

258.   S. Fekri, D.-W. Gu, N Khan and I. Postlethwaite, "Multiple-model based fault detection, isolation and accommodation in a UAV longitudinal control system", Conference on Control and fault tolerant systems, Nice, 6-8 October, 2010.

259.   I. Samy, I. Postlethwaite and D.W. Gu, "Detection and accommodation of sensor faults in UAVs - a comparison of NN and EKF based approaches", 49th IEEE Conference on Decision and Control, Atlanta, 15-17 December, 2010.