399
Synthetic Aperture Radar (SAR) Data Calibration and Validation
399
Group on Calibration and Validation (WGCV) of the Committee on Earth Observation Satellite
(CEOS). The Amazon rainforest was used for ERS- 1/ 2, J- ERS- 1, RADARSAT- 1/ 2, ENVISAT,
RISAT- 1, Sentinel- 1A/ 1B, EOS- 04, RADARSAT Constellation Mission (RCM), etc., providing a
large isotropic backscattering reference over a wide range of incidence angle.
18.4 CORNER REFLECTORS
A corner reector is the most commonly used object for generating an impulse response in a test
SAR image. A good impulse response has a relatively large value for the pixel that maps the point
scatterer location, and very small values for all surrounding pixels. The impulse response is a
basic building ...