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为了提高防空导弹抗干扰能力,实现跟踪拦截来袭目标,基于主动模式获取目标特性后切换被动模式跟踪的末制导雷达工作原理,提出了一种利用自适应扩展卡尔曼滤波拟合出防空导弹弹道实现跟踪拦截的制导律。算例仿真证明了导引律的可行性和有效性,且自适应扩展卡尔曼滤波的收敛性能优于扩展卡尔曼滤波。
In order to improve the anti-jamming capability of air defense missiles, to achieve the goal of tracking and intercepting incoming attacks, the principle of end-guided radar to switch passive mode tracking based on the active mode to obtain the target characteristics, a method of adapting extended Kalman filter to fit the air defense missile trajectory Guidance and tracking to achieve interception of the law. Simulation results show the feasibility and validity of the guidance law, and the performance of adaptive extended Kalman filter is better than that of extended Kalman filter.