Some considerations about the in-orbit calibration of spaceborne rotating fan beam radar scatterometer

Author

Dong Xiaolong ; Liu Daozhi ; Zhu Jintai ; Zhu Di ; Lin Wenming

Author_Institution

Key Lab. of Microwave Remote Sensing, Center for Space Sci. & Appl. Res., Beijing, China

fYear

2011

fDate

24-29 July 2011

Firstpage

965

Lastpage

968

Abstract

Rotating fan-beam scatterometer (RFSCAT) is a new kind of spaceborne scatterometer for ocean surface vector wind (OSVW) measurement. In this paper, some consideration about the calibration of a Ku-band RFSCAT is presented. Both internal calibration and external calibration are described. Preliminary analyses about the internal calibration precision and external calibration accuracy are presented. Based on the method of Long, et al, external calibration method for RFSCAT is proposed. Some simulation results for the external calibration with natural extended targets, such as Amazon forest, are presented.

Keywords

atmospheric techniques; calibration; remote sensing by radar; spaceborne radar; wind; Amazon forest; Ku-band RFSCAT; external calibration accuracy; in-orbit calibration; internal calibration precision; ocean surface vector wind measurement; rotating fan beam radar scatterometer; spaceborne scatterometer; Antennas; Backscatter; Calibration; Insertion loss; Radar measurements; Receivers; Spaceborne radar; calibration; extended target; ocean surface vector wind; rotating fan-beam scatterometer;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6049293

Filename

6049293