天线罩误差下基于ADP的机动目标拦截制导策略  

ADP-based Guidance Strategy for Maneuvering Target Interception under Radome Errors

作　　者：郭建国[1] 胡冠杰 郭宗易[1] 王国庆[2] GUO Jianguo;HU Guanjie;GUO Zongyi;WANG Guoqing(Institute of Precision Guidance and Control,Northwestern Polytechnical University,Xi’an 710072,China;Research and Development Department,China Academy of Launch Vehicle Technology,Beijing 100076,China)

机构地区：[1]西北工业大学精确制导与控制研究所,西安710072 [2]中国运载火箭技术研究院研发部,北京100076

出　　处：《宇航学报》2022年第7期911-920,共10页Journal of Astronautics

基　　金：国家自然科学基金(61973254);陕西省自然科学基础研究计划(2020JQ-221);民用航天技术预研项目(D020307)。

摘　　要：针对导弹导引头存在的天线罩误差,提出了一种基于自适应动态规划(ADP)的制导策略。不同于传统处理天线罩误差的估计与补偿方式,避免了估计过程中产生的误差影响。在导弹拦截机动目标的场景下,将拦截问题转化为鲁棒最优控制问题。设计了一种既可以消除天线罩误差和目标机动影响,又可以保证控制能量最小的代价函数。通过构造评价网络,利用自适应动态规划来求解近似鲁棒最优制导策略,并附加鲁棒控制项得到最终的机动目标拦截制导策略。采用李雅普诺夫稳定性理论证明了权值误差的一致最终有界和闭环系统的渐近稳定。仿真结果验证了所提出制导策略对天线罩误差下拦截机动目标的有效性。Aiming at the radome error of missile seeker, a guidance strategy is proposed based on adaptive dynamic programming(ADP). Different from traditional methods of processing radome error estimation and compensation, this strategy avoids the error influence arising from the estimation process. In the scenario of missile intercepting maneuvering target, the interception problem is transformed into a robust optimal control problem. A cost function is designed to eliminate the influence of radome errors and target maneuvering, and to ensure the minimum control energy. The final maneuvering target interception guidance strategy is obtained by constructing a critic network, using adaptive dynamic programming to solve the approximate robust optimal guidance strategy, and attaching a robust control term. Using the Lyapunov stability theory, the uniformly ultimate boundedness of the weight error and the asymptotic stability of the closed-loop system are proved. The simulation results verify the effectiveness of the proposed guidance strategy for intercepting maneuvering targets under radome errors.

关 键 词：天线罩误差 自适应动态规划 制导策略 鲁棒最优控制 李雅普诺夫稳定性 

分 类 号：V243.4[航空宇航科学与技术—飞行器设计] TJ765[兵器科学与技术—武器系统与运用工程]