Time-frequency analysis of polarimetric vector signal and its application in radar target recognition

The time-frequency analysis technology for polarimetric vector signal is discussed in this paper. Considering the particularity of polarimetric vector signal, a series of time-frequency transforms for this kind of vector signal are presented. With these transforms, both the description of its energy property and of its polarization property can be obtained in the time-frequency domain, while using conventional methods, only the former can be obtained. Then, we apply these new methods to target recognition experiment, and the recognition results show that these new methods have better performance than conventional ones.