Study on the method of polarization suppression of cheating jamming in pulse Doppler radar

摘要

A jamming suppression method based on polarization signal detection is proposed under common range and velocity cheating jammingfor pulse Doppler radar. On the basis of the separation of the target and the jamming, the range and velocity track on the true target are realized. Firstly the signal processing model of the full polarization pulse Doppler radar is introduced. Secondly the method of correct target separation is discussed, which is the twice detections of energy and polarization state on the two dimension resolution cells of range and velocity of the radar echo. Finally the simulations are performed and the results prove the validity. What' s more, multiple range and velocity cheating jamming can be suppressed at the same time if the target and the jamming are different in the polarization domain.