Title :
Analysis and improvement of polarimetric calibration techniques
Author :
Martínez, Carlos López ; Cortés, Antonio ; Fàbregas, Xavier
Author_Institution :
Univ. Polytech. de Catalunya, Barcelona
Abstract :
This work presents an analytical study of the Quegan´s PolSAR data calibration algorithm. As it shall be demonstrated, the solution proposed by Quegan based on certain approximations, gives in certain situations, biased crosstalk ratios u, v, w and z. An improved Quegan´s calibration algorithm is proposed and tested.
Keywords :
geophysical techniques; radar polarimetry; synthetic aperture radar; Quegan PolSAR data calibration algorithm; biased crosstalk ratios; polarimetric calibration techniques; Algorithm design and analysis; Calibration; Contamination; Crosstalk; Geophysical measurements; Polarization; Remote sensing; Signal analysis; Speckle; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4424039
