Title :
SAR processing algorithms in the KSPT ENVISAT ASAR processor
Author :
Olsen, Ole Morten ; Rasmussen, Gunnar L. ; Indregard, Marte ; Øynes, Frank
Author_Institution :
Kongsberg Spacetec AS, Tromso, Norway
Abstract :
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
Keywords :
geophysical signal processing; geophysical techniques; radar imaging; radar signal processing; remote sensing by radar; synthetic aperture radar; terrain mapping; ASAR; ASAR processor; EETF algorithm; ENVISAT; KSPT; SAR; alternating polarization mode; burst EETF algorithm; extended exact transfer function; geophysical measurement technique; image mode; land surface; phase preserving SPECAN algorithm; processing algorithm; radar imaging; radar remote sensing; spaceborne radar; synthetic aperture radar; terrain mapping; wide swath; Algorithm design and analysis; Azimuth; Chirp; Filtering algorithms; Fourier transforms; Frequency domain analysis; Image quality; Interpolation; Polarization; Transfer functions;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978237
