An on-board real-time UWB SAR processor

This paper mainly introduces a high-performance system of real-time Ultra Wide-Band (UWB) SAR processing. Firstly, the sub-aperture Nonlinear Chirp Scaling (NCS) algorithm is optimized and selected to form the UWB SAR image, and then it is mapped to the Multiple Digital Signal Processor (Multi-DSP) board. Secondly, the timing sequence of the realtime processing is analyzed, and the processing time of each task is measured. Finally, the simulation result of the realtime UWB SAR processing is given. (4 pages)