Predictive Terminal Guidance With Tuning of Prediction Horizon & Constrained Control .

S. E. Talole; Ravi N. Banavar

doi:10.14429/dsj.50.3442

S. E. Talole Institute of Armament Technology, Pune
Ravi N. Banavar Indian Institute of Technology Bombay, Mumbai

DOI: https://doi.org/10.14429/dsj.50.3442

Keywords: Time predictive control, Terminal guidance law, Iteration algorithm

Abstract

Continvojs time-predictive control approach is employed to formulate an output tracking nonlinear, optimal, terminal guidance ,law for re-entry vehicles. The notable features of this formulation are that the system equations are not linearised and the evaluation of the guidance
equations does not need the information of vehicle parameters, such as drag and mass. The formulation allows to impose the physical constrains on the control inputs, i..e. on the demanded lateral acceleliations through a saturation mapping and the controls are obtained using a fixed point
iteration algorithm which converges typically in a few iterations. Further, a simple method of tuning the prediction horizon needed in the guidance equations is presented. Numerical simulations show that the guidance law achieves almost zero terminal errors in all states despite large errors in initial Conditions.

Author Biographies

S. E. Talole, Institute of Armament Technology, Pune

Mr SE Talole received his ME in Aerospace Engineering from the Indian Institute of Science, Bangalore, in 1989 and .joined DROO in the same year. Presently, he is working as Scientist at the Institute of Armament Technology, Pune. His areas of interest are control systems and flight dynamics. Currently, he is pursuing his PhD in the area of nonlinear predictive control from Indian Institute of Technology (IIT), Mumbai.

Ravi N. Banavar, Indian Institute of Technology Bombay, Mumbai

Mr Ravi N Banavar received his B.Tech. from IIT. MS from Clemson University and PhD from the University of Texas at Austin. He joined the Systems and Control Engineering Group at IIT. Bombay. in 1993 and is presently working as Associate Professor. His areas of research include: applied control mehanical hanical. chemical and aerospace applications.

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Predictive Terminal Guidance With Tuning of Prediction Horizon & Constrained Control .

Abstract

Author Biographies

References

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