Title :
A simplified calibration technique for polarimetric radars
Author :
Gail, William B.
Author_Institution :
Ball Corp., Broomfield, CO, USA
Abstract :
Polarimetric imaging radars require accurate calibration of channel imbalance and cross-talk to provide meaningful data. Current calibration techniques, which depend on ground-based reflectors or active radar transceivers within a scene, are labor intensive and sensitive to target orientation. This paper presents a new technique for performing calibration that simplifies the calibration process and minimizes the use of ground-based calibration targets. The technique is applicable to both airborne and spaceborne imaging radar systems
Keywords :
calibration; geophysical techniques; polarimetry; remote sensing; remote sensing by radar; synthetic aperture radar; Faraday rotation; SAR; airborne; calibration; channel imbalance; cross-talk; geophysical measurement technique; land surface imaging; polarimetric radar; radar remote sensing; scattering element statistical analysis; spaceborne; synthetic aperture radar; Airborne radar; Calibration; Covariance matrix; Layout; Nonlinear equations; Radar imaging; Radar polarimetry; Radar scattering; Rotation measurement; Spaceborne radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322577