Title :
Design of the interface of a calibration transponder and an altimeter / scatterometer
Author :
Xu Xi-Yu ; Guo Wei ; Liu He-Guang ; Shi Ling-Wei ; Lin Wen-Ming ; Du Yue-Heng
Author_Institution :
Key Lab. of Microwave Remote Sensing, Center for Space Sci. & Appl. Res., Beijing, China
Abstract :
A transponder system is developed to fulfill the in-orbit calibration of the HY-2 satellite altimeter (ALT) and scatterometer (SCAT). The interaction of a calibration transponder and radar (altimeter / scatterometer) is rather complicated. After a brief description of the two active payloads on HY-2 satellite, several key issues are investigated in detail, including time arrangement and power budget. There are some innovations in calibration strategy, including the pre-distortion technology in ALT calibration and the Single-Input-Multiple-Output (SIMO) technology in the SCAT calibration.
Keywords :
altimeters; calibration; transponders; SCAT calibration; SIMO technology; altimeter; calibration transponder; in-orbit calibration; scatterometer; Azimuth; Calibration; Chirp; Radar measurements; Satellites; Spaceborne radar; Transponders; Single-Input-Multiple-Output; Transponder; altimeter; pre-distortion; scatterometer;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6049290
