Volume 37, Number 4, August 2019
|Page(s)||682 - 690|
|Published online||23 September 2019|
Intercepting Higher-Speed Targets Using Generalized Relative Biased Proportional Navigation
School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China
2 Shaanxi Key Laboratory of Aerospace Flight Vehicle Technology, Xi’an 710072, China
To intercept a higher-speed target in the terminal guidance phase, this paper proposes a generalized relative biased proportional navigation (BPN) law. In order to enlarge the capture domain of the classical proportional navigation (PN) law and make full use of the maneuverability of a missile, the paper designs time-varying navigation coefficients; thus the modified PN guidance law integrates the advantages of the PN guidance law with those of the retro-PN guidance law. In order to intercept high-speed targets with impact angle constraints, the relative BPN law is introduced, and the impact angle is achieved by controlling the relative flight-path angle. In order to improve the performance of the guidance law for intercepting higher-speed maneuvering targets, some compensation measures are designed for guidance commands. Extensive simulations are conducted to verify the design features of the proportional navigation law.
Key words: terminal guidance / higher-speed target / impact angle constraint / relative biased proportional navigation
关键字 : 末制导 / 高速运动目标 / 碰撞角约束 / 相对偏置比例
© 2019 Journal of Northwestern Polytechnical University. All rights reserved.
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