Internal and external calibration of POLINSAR

Author

Yang, Wang ; Xi, Chen ; Jialong, Ge ; Kai, Jiang

Author_Institution

38th Res. Inst., China Electron. Technol. Corp., Hefei, China

Volume

1

fYear

2011

fDate

24-27 Oct. 2011

Firstpage

879

Lastpage

882

Abstract

Polarimetric SAR interferometry (POLINSAR) techniques have been studied as hot research topics in the area of SAR remote sensing in recent years. At present, many POLINSAR systems were developed, and the first POLINSAR prototype in China is also developed by 38th Research Institute of CETC. There is an urgent need for the data from these sensors to be calibrated, so that the relationships between radar backscatter and geophysical parameters can be properly established. In this paper, we introduce internal and external calibration of POLINSAR. Then, the validation of calibration accuracy is implemented based on reflectors in experimental site. The results indicate crosstalk and imbalance can be improved after calibration.

Keywords

backscatter; calibration; crosstalk; radar interferometry; radar polarimetry; remote sensing by radar; synthetic aperture radar; POLINSAR prototype; POLINSAR systems; POLINSAR techniques; Research Institute of CETC; SAR remote sensing; calibration accuracy; crosstalk; experimental site; external calibration; geophysical parameters; internal calibration; polarimetric SAR interferometry techniques; radar backscatter; Calibration; Crosstalk; Interferometry; Receiving antennas; Transmitting antennas; crosstalk; external calibration; imbalance; internal calibration; polarimetric SAR interferometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar (Radar), 2011 IEEE CIE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8444-7

Type

conf

DOI

10.1109/CIE-Radar.2011.6159681

Filename

6159681