| 大气层外多拦截器协同跟踪与制导算法 |
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| 引用本文： | 张召,王恒,荆武兴,高长生.大气层外多拦截器协同跟踪与制导算法[J].宇航学报,2019,40(7):785-793. |
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| 作者姓名： | 张召 王恒 荆武兴 高长生 |
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| 作者单位： | 哈尔滨工业大学航天学院，哈尔滨 150001 |
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| 摘 要： | 针对大气层外多弹头多诱饵的进攻场景，采用多拦截器全拦截策略，提出了带故障诊断的协同跟踪算法、时间协同中制导律以及消除脱靶量的末制导律。首先，基于最小二乘算法以及误差传播理论，实现了局部信息融合以及测量方程的线性化，简化了非线性跟踪滤波算法的设计；并依托滤波算法，设计了传感器故障诊断算法，以排除其对跟踪效果的影响。然后，基于对拦截器和目标受力的合理简化，给出了相对运动解析解，设计了有限推力下的多拦截器时间协同中制导律以及末制导律，实现对多个目标的同时击毁。仿真结果显示，本文设计的协同跟踪与制导算法，可以有效估计目标的状态并排除故障传感器的干扰，实施对多个目标的时间协同拦截。
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| 关 键 词： | 大气层外 多拦截器 协同跟踪 故障诊断 协同制导 |
| 收稿时间： | 2018-05-08 |
Cooperative Tracking and Guidance Algorithm for Exoatmospheric Multiple Interceptors |
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| ZHANG Zhao,WANG Heng,JING Wu xing,GAO Chang sheng.Cooperative Tracking and Guidance Algorithm for Exoatmospheric Multiple Interceptors[J].Journal of Astronautics,2019,40(7):785-793. |
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| Authors: | ZHANG Zhao WANG Heng JING Wu xing GAO Chang sheng |
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| Affiliation: | School of Astronautics, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | A full interception strategy of multiple interceptors is adopted in the scenario of a multi-warhead and multi-bait attack. We propose a cooperative tracking algorithm with fault diagnosis, a time cooperative guidance law of multiple interceptors and a terminal guidance law to eliminate the miss distance. Firstly, the measurement equation is linearized and the nonlinear tracking filter algorithm is simplified based on the least square algorithm and error propagation theory. In term of the filter algorithm, a sensor fault diagnosis method is designed to eliminate its influence on the tracking performance. Then, with a reasonable simplification on the dynamics of the interceptors and targets, an analytical solution of the relative motion is obtained, which contributes to the design of the time cooperative guidance law and the terminal guidance law with finite thrust to achieve the simultaneous destruction of multiple targets. The simulation results show that the designed cooperative tracking and guidance algorithm can effectively estimate the target state and eliminate the interference of the fault sensors, and implement the time cooperative interception for multiple targets. |
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| Keywords: | Exoatmosphere Multiple interceptors Cooperative tracking Fault diagnosis Cooperative guidance |
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