Effects of Divert-Thrusters on Homing Performance of Endo-atmospheric Interceptors

Yanfang Liu (), Naiming Qi and Zhiwei Tang
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Yanfang Liu: Harbin Institute of Technology
Naiming Qi: Harbin Institute of Technology
Zhiwei Tang: Harbin Institute of Technology

Journal of Optimization Theory and Applications, 2013, vol. 156, issue 2, No 10, 345-364

Abstract: Abstract A new guidance law is proposed for interceptor missiles by using a differential game formulation with bounded controls. The interceptor is steered by the aerodynamic-lift control system and the divert-thrusters control system. By using game space decomposition, the parameter effects of divert-thrusters control system on homing performance are investigated. Under propellant limits and given the time constant of the divert-thrusters control system, the hit-to-kill performance requires the following conditions. Firstly, the maximum acceleration generated by the divert-thrusters control system is greater than a critical value. Secondly, the thrusters close after interception terminates. Thirdly, the operation time of the divert-thrusters control system is sufficient long to cancel the miss distance. These results are also demonstrated by a realistic ballistic missile-defense simulation program.

Keywords: Guidance laws; Differential game; Interception missile; Divert-thrusters (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s10957-012-0119-1

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