A Distributed Target-Based Calibration Method for Hybrid Quadrature-Polarimetric SAR

Due to the large equivalent transmit crosstalk in hybrid quadrature polarimetric SAR system, traditional calibration methods using azimuthally symmetric distributed targets (AS-Targets) cannot work. In this manuscript, a preprocessing method of AS-Targets' covariance matrix is proposed, which m...

Full description

Saved in:
Bibliographic Details
Published inIGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium pp. 2538 - 2541
Main Authors Han, Yonghui, Liu, Xiuqing, Hou, Wentao, Gao, Yao, Wang, Robert, Fan, Huaitao, Liu, Dacheng, Zhao, Fuhai
Format Conference Proceeding
LanguageEnglish
Published IEEE 17.07.2022
Subjects
AS-Target
Atmospheric modeling
Calibration
Crosstalk
Data models
Geoscience and remote sensing
Hybrid Quadrature Polarimetric SAR
Polarimetric Calibration
Reliability
Synthetic aperture radar
Online AccessGet full text

Cover

More Information
Summary:Due to the large equivalent transmit crosstalk in hybrid quadrature polarimetric SAR system, traditional calibration methods using azimuthally symmetric distributed targets (AS-Targets) cannot work. In this manuscript, a preprocessing method of AS-Targets' covariance matrix is proposed, which makes equivalent crosstalk after processed become small to achieve system calibration through the AS-Targets. Simulation and airborne SAR data testing verify the reliability of the proposed method. The results show that the method presented in this manuscript can well calibrate the hybrid quadrature polarimetric SAR system using AS-Targets.
ISSN:2153-7003
DOI:10.1109/IGARSS46834.2022.9883568