自适应随机跳变滤波器在导弹制导中的应用

Application of Adaptive Stochastic Jump Filter to Missile Guidance

针对目标机动对导弹制导系统视线角速度的影响,利用导弹导引头给出的量测信息,设计了自适应随机跳变滤波器对弹目视线角速度进行滤波,在计算量增加不大的情况下,可以满足不同机动模式的滤波要求。仿真结果表明,所设计的自适应随机跳变滤波能准确估计目标机动模式,并对视线角速度进行有效滤波,其滤波结果满足导弹制导系统性能指标要求。

Taking aim at the influence of target maneuvering on line of sight （LOS） angular rate between missile and target, an adaptive stochastic jump filter was designed by the information measured with the seeker for filtering the LOS angular rate. The filter can satisfy the requirement of filtering for variable maneuvering modes in the case of computational quantity increased less. Simulated results show that the filter can exactly estimate target maneuvering mode and filter the LOS angular rate effectively, and the filtering results satisfy the performance indexes of the missile guided system.