雷达导引头角闪烁抑制算法研究

Study on Radar Seeker Angular Glint Suppressing Algorithm

角闪烁是雷达目标的固有特性,特别是在近距制导时,角闪烁是影响毫米波末制导雷达角跟踪精度的主要因素之一,可能使脱靶量增加,甚至导致目标丢失。本文在阐述角闪烁形成机理及其对末制导角跟踪精度影响的基础上,提出了一种基于距离高分辨和α-β-γ滤波以及角通道滤波后处理的近距离角闪烁抑制算法,并利用跑车跟踪仿形坦克目标实测数据验证了该算法的有效性。

As an intrinsic characteristic of radar target, the angular glint is one of the most key factors influencing angular tracking accuracy of millimeter wave terminal guidance radar, which may increase miss distance, even re-sult in target losing, particularly in short range guidance. On basis of stating formation mechanism of angular glint and the influence on angle tracking accuracy of terminal guidance, a new angular glint suppressing algorithm based on the high range resolution and α-β-γ filtering as well as angle channel filtering post processing is proposed. The validity of the algorithm is verified by real data measured in tracking the simulated tank target by using sport car.