Dual Polarization Identification of Active Decoys.

For millimeter wave (MMW) radar system of dual polarization, this paper presents a polarization identification method of active jamming decoys. Firstly, the principle of dual polarization technique is introduced, and the characteristics of dual polarization echo of the representative radar targets and various active decoys are analyzed in detail. Secondly, some effective characteristics of active decoys and radar targets are obtained to express their polarization characteristics differences, such as polarization ratio and polarization undulation. Thirdly, an identification method based on self - adaptive constant false alarm rate (CFAR) threshold is proposed. Finally, a dual polarization test radar system is constructed to gather and analyze the experimentation echo data of buildings, vertical polarization, horizontal polarization and left-handed circular polarization active decoys, and the experimentation results prove that the dual polarization identification method of active decoys is feasible and effective. [ABSTRACT FROM AUTHOR]