Title :
RADARSAT-2 antenna calibration using Ground Receivers/Transmitters
Author :
Thompson, Alan A. ; Racine, David ; Luscombe, Anthony P.
Author_Institution :
MacDonald, Dettwiler & Associates Ltd., Richmond, BC, Canada
Abstract :
The RADARSAT-2 antenna is an active phased array of 512 T/R modules. In order to characterize the physical distortions and the amplitude and phase errors across the antenna array, it is planned to perform measurements using the radar in conjunction with a unit on the ground for receiving and recording signals from the satellite, and for generating signals and transmitting them towards the satellite. This unit is referred to as a Ground Receiver/Transmitter. This paper will describe the method of operation of the satellite with the Ground Receiver/Transmitter, the design of the Ground Receiver/Transmitter, and the algorithms to be used to analyze the Ground Receiver/Transmitter data.
Keywords :
antenna phased arrays; calibration; geophysical equipment; geophysical techniques; microwave antennas; remote sensing by radar; satellite antennas; spaceborne radar; synthetic aperture radar; terrain mapping; RADARSAT; RADARSAT-2; SAR; T/R module; active phased array; algorithm; amplitude error; antenna calibration; geophysical measurement technique; ground receivers transmitter; land surface; phase error; physical distortion; radar remote sensing; spaceborne radar; synthetic aperture radar; terrain mapping; Algorithm design and analysis; Antenna arrays; Calibration; Phase distortion; Phased arrays; Radar antennas; Receiving antennas; Satellites; Transmitters; Transmitting antennas;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1026150
