Estimation algorithm of PRF for space-borne SAR based on local wave decomposition(LWD) pulse compression

Confirmation of Radar signals' pulse repetition frequency (PRF) is an important job for electronic intelligence reconnaissance. For space-borne SAR, different work mode is corresponding to different pulse repetition frequency. As a result, the confirmation of PRF can supply intelligence support for work mode reconnaissance. In this paper, a new estimation algorithm based on local wave decomposition (LWD) pulse compression is put forward. It can realize quick estimation of PRF in low SNR by using this method. And simulation proves its rationality.