A multi-mode space-borne Synthetic Aperture Radar signal processor

A multi-mode space-borne Synthetic Aperture Radar (SAR) signal processor is presented in this paper. The processor is one of the core modules of the Space-borne Radar Advance Simulator (SBRAS). It can support the signal processing of strip-map mode, spotlight mode, sliding spotlight mode, ScanSAR mode, and Terrain Observation by Progressive Scans (TOPS) mode. The signals of the modes are analyzed first, and the requirements in the design of the processor are discussed. Then the structure of the processor is described. At last, two application examples are provided and the conclusion follows.