Single channel sar slow moving target detection in time-frequency domain

Moving target detection is still a challenge in single channel synthetic aperture radar (SAR). Clutter suppression is the key to detect moving target in SAR image. To achieve good performance of clutter suppression, we propose a method to extract moving target signal in time-frequency domain. Firstly, the signal after range compression is transformed into time-frequency domain. Secondly, moving target's signature will be isolated by the different frequency characteristics between clutter and target. Finally, the moving target signal in range compressed and azimuth time domain can be obtained. The experiment in this paper is used to validate the effectiveness of proposed method.