Interference direction finding method of phased array radar

The invention relates to the field of radar signal processing, in particular to an interference direction finding method of a phased array radar. The method comprises the following five main steps: step 1, obtaining the maximum amplitude mean value of clean area echoes in all wave beams of a main channel; step 2, obtaining the maximum value of the amplitude mean value of clean area echoes in all wave beams of the auxiliary channel; step 3, establishing a main channel clean area echo amplitude diagram; step 4, establishing an echo amplitude diagram of the clean area of the auxiliary channel; and 5, comparing the echo amplitude diagrams of the cleaning areas of the main channel and the auxiliary channel to give interference marks and interference amplitudes of all orientation units. According to the method, the interference search probability is improved; and the angle resolution of one beam width is realized. 本发明涉及雷达信号处理领域，特别是涉及一种相控阵雷达的干扰测向方法。本发明包括5个主要步骤，步骤1：获得主通道所有波束中清洁区回波的幅度均值最大值；步骤2：获得辅助通道所有波束中清洁区回波的幅度均值最大值