LFMCW雷达导引头大下视角对地探测时搜索波门自适应设置方法

Method of Setting Search Gate Adaptively while LFMCW Radar Seeker Working in Ground Detection with Wide Incidence Angle

本文介绍了一种线性调频连续波(LFMCW)雷达导引头大下视角对地探测时搜索波门位置的自适应跟踪算法。通过该算法可以在智能弹药末制导飞行中实时估计地面位置,实现搜索波门位置的自适应跟踪,以解决低成本智能弹药末制导中无法准确设置搜索波门的问题,延长导引头的搜索时间,提高导引头目标捕获概率。

An adaptive tracking algorithm for setting search gate position when LFMCW radar seeker works in ground detection with wide incidence angle is presented. Using this algorithm can estimate ground position in real time to implement adaptive tracking search gate position so as to solve issue of not being able to set search gate accurately in terminal guide of low cost intelligent ammunition and extend search time of seeker, improve target acquisition probability of seeker.