Title :
Absolute calibration of scatterometers in near field region
Author :
Dong, Xaolong ; Wu, Ji ; Sun, Bo ; Jiang, Jingshan
Author_Institution :
Center for Space Sci. & Appl. Res., Acad. Sinica, Beijing, China
Abstract :
In this paper, a procedure of absolute calibration for ground based scatterometers is presented. The effects of the far field criterion for the calibration are analyzed. The concept of effective radar cross section (ERCS) is introduced to unify the calibration formula for near field region and far field region measurement. A practical calibration method is proposed. Some calibration results show the validity of the given method
Keywords :
calibration; geophysical equipment; radar cross-sections; remote sensing by radar; absolute calibration; effective radar cross section; far field criterion; near field region; scatterometers; Antenna measurements; Backscatter; Calibration; Radar cross section; Radar measurements; Radar scattering; Receiving antennas; Spaceborne radar; Sun; Transmitting antennas;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.699512
