临近空间高速目标拦截策略设计  

Interception Strategy Design of High Supersonic Targets in the Near Space

作　　者：孙兴龙 马克茂[1] 姜宇[1] 侯振乾 SUN Xinglong;MA Kemao;JIANG Yu;HOU Zhenqian(School of Astronautics,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China;Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001 [2]上海机电工程研究所,上海201109

出　　处：《空天防御》2022年第4期10-18,共9页Air & Space Defense

基　　金：上海航天科技创新基金(SAST2018005);航天科技基金(JZJJX20190017)。

摘　　要：为实现对临近空间飞行器等高速目标的有效防御,采用中、末分段制导的方式对目标进行拦截。首先,将中制导的设计描述为带有终端约束的优化问题,利用高斯伪谱法(Gauss pseudo-spectral method,GPM)将该问题离散化处理并转化为非线性规划(nonlinear programming,NLP)的形式,在线求解该非线性规划问题并基于滚动时域的方式完成了最优中制导律的闭环实现,算法保证了在制导信息短时间缺失等工况下的适用性。然后,设计了带有目标机动补偿的末制导律,降低了拦截末段对所需过载的要求,并基于制导信息估计完成了制导律的实现。最后,对闭环制导系统的稳定性进行了理论分析,并以典型高速目标拦截为例进行数值仿真,验证了本文所提拦截策略的有效性。In order to achieve effective defense against high supersonic targets such as near space flight vehicles,the midcourse guidance together with terminal phase guidance is used to intercept the targets.First,the design of midcourse guidance is described as an optimization problem with terminal constraints.The problem is discretized and converted into a form of nonlinear programming(NLP)using the Gauss pseudo-spectral method(GPM).The NLP problem is solved online and the optimal guidance law is implemented in a closed-loop in a receding horizon architecture.The algorithm ensures the applicability under the condition of guidance information missing for a short time.Then,the terminal guidance law with target maneuver compensation is designed to reduce the requirement of overload on the interceptor,and the terminal guidance law is implemented based on guidance information estimation.Finally,the stability of the closed-loop guidance system is analyzed theoretically,and the effectiveness of the proposed interception strategy is verified by numerical simulation of the interception against a typical high supersonic target.

关 键 词：临近空间 高速 高斯伪谱法 最优制导律 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]