Cryosat Level 1 Calibration with Transponder
Abstract
The main instrument of CRYOSAT will be the SAR Interferometric Radar Altimeter (SIRAL). Two different softwares have been developed to calibrate SIRAL level 1A and level 1B data respectively with the use of a geolocated transponder. Level 1A data consist of bursts of complex, time domain echoes after internal calibration corrections while level 1B data consist of incoherent multilooked echoes after slant range correction. The aim is to check several important level 1 parameters during the CRYOSAT commissioning phase, like range, datation, impulse response, interferometric phase difference, sigma0, etc. The softwares have been tested with simulations of CRYOSAT overflying a transponder in different geometrical and acquisition configurations.
- Publication:
-
ESA Special Publication
- Pub Date:
- July 2006
- Bibcode:
- 2006ESASP.614E..85B