基于子孔径进行雷达目标仰角估计的改进算法

Improved Method of Elevation Estimation of Radar Target Based on Subaperture

三子孔径算法可以估计位于雷达主瓣内的两个目标的到达角。基于这一点也可将其用在存在多径情况下的目标到达角的估计中。本文利用直达波振幅强度强于反射波振幅强度的已知条件 。

The three-subaperture method is a technique for estimating the arrival angles of two targets located in the main beam of the radar. Based on this, it can also be used in estimating the arrival angle of a target in the presence of multipath. The paper shows how the three-subaperture method improves the angle estimating accuracy by making use of the condition that the amplitude of the direct ray is larger than that of the reflected ray.