SAR processing algorithms in the KSPT ENVISAT ASAR processor

This paper describes the algorithms used in the KSPT ENVISAT ASAR processor. The KSPT ASAR processor is required to process data from image (IM) mode, alternating polarization (AP) mode and wide swath (WS) mode. Three different processing algorithms are used for processing the different modes. For IM mode the processor is using the Extended Exact Transfer Function (EETF) algorithm, for AP mode the burst-EETF algorithm and for WS a modified phase preserving SPECAN algorithm. The algorithms have been selected to get optimal image quality for the different modes.