An Approach of Self-Defense Mainlobe Interference Suppression

Self-defense mainlobe interference and radar echo signals generated by real targets are same spatial angle, which seriously affect the radar performance, so self-defense mainlobe interference suppression is one of the hot spots and difficulties in the current radar field. In order to solve this issue, an approach of self-dense mainlobe interference suppression is proposed. Firstly, the pulse signals suffered self-dense mainlobe interference are rejected. Then, based on modified iterative method with adaptive threshold, the interfered pulse signals are reconstructed along slow time. Simulation results indicate that the proposed approach not only could effectively suppress the self-dense mainlobe interference, but also has high robust to the amount and periodicity of the interference pulses, which has a promising engineering application prospect