A Singular Perturbation Based Midcourse Guidance Law for Realistic Air-to-Air Engagement

  • M Manickavasagam Advance System Laboratory, Kanchanbagh, Hyderabad
  • A.K. Sarkar Defence Research and Development Laboratory, Kanchanbagh, Hyderabad
  • V Vaithiyanathan SASTRA University, Thanjavur
Keywords: Singular perturbation, Midcourse guidance law, Beyond visual range, Interceptor

Abstract

In this study, a singular perturbation based technique is used for synthesis and analysis of a near optimal midcourse guidance law for realistic air-to-air engagement. After designing the proposed midcourse guidance law using three dimensional point mass formulation it has been validated through detailed realistic six degrees of freedom simulation. During terminal phase only proportional navigation guidance have been used. The calculation of optimal altitude in present guidance law has been carried out using Newton’s method, which needs generally one iteration for convergence and suitable for real-time implementation. Extended Kalman filter based estimator has been used for obtaining evader kinetic information from both radar and seeker noisy measurements available during midcourse and terminal guidance. The data link look angle constraint due to hardware limitation which affects the performance of midcourse guidance has also been incorporated in guidance law design. Robustness of complete simulation has been carried out through Monte Carlo studies. Extension of launch boundary due to singular perturbation over proportional navigation guidance at a given altitude for a typical engagement has also been reported.

Author Biographies

M Manickavasagam, Advance System Laboratory, Kanchanbagh, Hyderabad
MR M Manickavasagam had the BE (Aeronautical Engineering) from MIT (Anna University) and ME (Aerospace Engineering) from IISc Bengaluru. He has been working as scientist in Advance System Laboratory, Hyderabad.
A.K. Sarkar, Defence Research and Development Laboratory, Kanchanbagh, Hyderabad

Mr A.K. Sarkar had BE (Aeronautical Engineering) from IIT Kharagpur and ME (Computer Science) from IIT Madras and currently pursuing his PhD from IISc Bengaluru. Presently working as scientist in Defence Research and Development Laboratory, Hyderabad.
V Vaithiyanathan, SASTRA University, Thanjavur

Dr V. Vaithiyanathan is associate dean and professor of school of computing in SASTR.
Published
2016-12-23
How to Cite
Manickavasagam, M., Sarkar, A., & Vaithiyanathan, V. (2016). A Singular Perturbation Based Midcourse Guidance Law for Realistic Air-to-Air Engagement. Defence Science Journal, 67(1), 108-118. https://doi.org/10.14429/dsj.1.9236
Section
Missile Systems