一种反辐射空地导弹距离滤波方法

摘要

根据被动雷达导引头的测量信息，提出了一种弹目相对距离滤波算法，该算法能够估算出弹目相对距离误差，并采用固定增益滤波方式来抑制噪声的影响。文章中首先推导了坐标系之间的转换关系，然后建立了导引头测量信息与弹目相对距离之间的关系式，最后通过仿真验证了该算法的有效性。%Herein introduces a method of estimating relative distance between missile and target, which can calculate error of relative distance according to metrical information provided by radar, and revise relative distance by using fixed gain filter. The transform matrices between four coordinates are deduced and the mathematical model of relation between radar and relative distance is built up, then the filter is designed. Finally, the performance of filter is tested by simulation.