A trajectory shaping guidance law with field-of-view angle constraint and terminal limits  

作　　者：FU Shengnan ZHOU Guanqun XIA Qunli 

机构地区：[1]School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Beijing Aerospace Technology Institute,Beijing 100074,China [3]School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Journal of Systems Engineering and Electronics》2022年第2期426-437,共12页系统工程与电子技术（英文版）

基　　金：supported by the Defense Science and Technology Key Laboratory Fund of Luoyang Electro-Optical Equipment Institute,Aviation Industry Corporation of China (6142504200108)。

摘　　要：In this paper, a trajectory shaping guidance law,which considers constraints of field-of-view(FOV) angle, impact angle, and terminal lateral acceleration, is proposed for a constant speed missile against a stationary target. First, to decouple constraints of the FOV angle and the terminal lateral acceleration, the third-order polynomial with respect to the line-ofsight(LOS) angle is introduced. Based on an analysis of the relationship between the looking angle and the guidance coefficient,the boundary of the coefficient that satisfies the FOV constraint is obtained. The terminal guidance law coefficient is used to guarantee the convergence of the terminal conditions. Furthermore, the proposed law can be implemented under bearingsonly information, as the guidance command does not involve the relative range and the LOS angle rate. Finally, numerical simulations are performed based on a kinematic vehicle model to verify the effectiveness of the guidance law. Overall, the work offers an easily implementable guidance law with closed-form guidance gains, which is suitable for engineering applications.

关 键 词：shaping guidance law field-of-view(FOV)constraint impact angle constraint terminal lateral acceleration constraint 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]