Joint polarization for micro-Doppler signature enhancement

Full polarization radar systems can exploit full polarization to obtain a better degree of TFD's image formation of micro-Doppler target. In this paper, the polarimetric optimization algorithm to improve the TFD's image formation of micro-Doppler has been proposed. The effectiveness of the algorithm is demonstrated by the simulation experiment as well as by the measurement experiment of a space precession target in a microwave anechoic chamber.

I. Introduction

The backscattering of radar objects with micro-motions contains Doppler modulations which provide useful information about the objects and their motions[1]. As shown in [2]–[4], time-frequency analysis is the major method to extract the time-varying Doppler characteristics because the local time-frequency information can be obtained using this method.