Effects of range bin shape and Doppler filter response in a digital SAR data processor
Abstract
In calibrating the backscatter coefficient obtained with an imaging synthetic aperture radar (SAR) system to determine absolute values of radar cross-section and reflectivity it is common practice to use a target of known radar cross-section placed within the scene. A corner reflector acts as a point target, but the return from it may not be centered in the resolution cell. It is important, for accurate calibration, to perform straddling corrections based on the range bin and Doppler filter response curves.
- Publication:
-
Synthetic Aperture Radar Technology Conference
- Pub Date:
- 1978
- Bibcode:
- 1978sart.confR....G
- Keywords:
-
- Backscattering;
- Digital Filters;
- Doppler Effect;
- Radar Corner Reflectors;
- Synthetic Aperture Radar;
- Calibrating;
- Optical Data Processing;
- Radar Cross Sections;
- Radar Imagery;
- Communications and Radar