主瓣多假目标干扰收发联合抑制方法

Aiming at the mainlobe multiple false targets jamming confrontation problem, a space time phase coded multiple input multiple output(STPC-MIMO)signal and mismatch filter joint design method is proposed from the urgent need for radar anti-jamming in modern electronic warfare. This method adaptively adjust the spatial distribution of the jamming energy in the echo through the STPC-MIMO signal design to achieve the spatial separation of the true and false targets, and then combined with the mismatch filter design to achieve effective suppression of mainlobe multiple false targets under the condition of controllable signal noise to ratio loss. In addition, because the joint optimization method of transceriver needs to recognize the interference, the method of obtaining false target parameters based on STPC-MIMO signal echo is further proposed to form a waveform design jamming cognitive closed-loop radar detection system. Finally, simulation experiments verify the effectiveness of the proposed method.