The Polarization Suppression Method of the Local Radar Disturbances in Polarized Receiving

There are some serious interference signals on the airborne radar surveillance polarization receiver during working, which are caused by local electronic equipments. By extracting frequency polarization features, the simultaneously arriving signals of radar surveillance and interference can be polarization separated, and having a high accuracy. At the same time, amplitude and phase recovery technique are used to guarantee the amplitude and phase recovery of the radar surveillance signal in this paper, and it can satisfy the requirement of the separation. Discussing the methods how to estimate polarization parameters and enable the filter, theoretical analysis and simulation proved the effectiveness of the algorithm. Polarization parameter extraction technique can apply not only to radar polarization receiver, but also to suppress interference signal of the local radar.