Forest clutter suppression for moving target detection in UHF dual channel SAR

In this paper one way to combine UHF Synthetic Aperture Radar (SAR) processing with MIMO radar is shown. The SAR processing is conducted in the time domain using a fast back projection algorithm (FBP). Each channel is SAR processed separately until a middle stage. Some results have been obtained using 2-channel data from the LORA system. The experimental results show that it is possible to estimate target speed parameters as well as it is possible to suppress forest clutter significantly in the SAR images. For the specific dataset used, the SAR data collection time is 4.6s and the target is a truck with a corner reflector mounted on the back. The results show a good ability to suppress the forest clutter while not suppressing the target signal. Also, in order to obtain the correct target speed components in azimuth and range for focusing, the target dynamic parameters in target focusing and in the steering vector were regulated.