Efficient Full Aperture Processing of TOPS Mode Data

Efficient Full Aperture Processing of TOPS Mode Data

Institute: 
Norut
Type of publication: 
Conference
Publication channel: 
EUSAR 2010, 8th European Conference on Synthetic Aperture Radar.
Year: 
2010

This paper presents a very efficient wavenumber domain processor for the TOPS (Terrain Observation by Progressive Scans) imaging mode to be implemented on board European Space Agency¿s upcoming Sentinel-1 operational satellite. In particular, a novel signal transform, called Moving Band Chirp Z-Transform, is introduced in order to allow the entire azimuth aperture to be focused simultaneously without any need for temporary unaliasing, which requires upsampling, or subaperture processing.