DocumentCode :
812372
Title :
Calibration of bistatic polarimetric radar systems
Author :
Kahny, Daniel ; Schmitt, Klaus ; Wiesbeck, Werner
Author_Institution :
Inst. fur Hochstfrequenztech. und Elektronik, Karlsruhe Univ., Germany
Volume :
30
Issue :
5
fYear :
1992
fDate :
9/1/1992 12:00:00 AM
Firstpage :
847
Lastpage :
852
Abstract :
A calibration technique for laboratory type polarimetric, bistatic instrumentation radars is presented. It describes the errors induced by the standard radiation transfer approach (I-SRT) in a way similar to that for the monostatic case. A 12-term error correction and absolute polarimetric calibration is performed with two external reference targets. Only the polarimetric bistatic reference of the first target must be theoretically determined. The scattering reference of the second target is determined by a measurement during the calibration process (single reference calibration). The simulation of a third cross-polarization measurement is performed by an antenna rotation and a remeasurement of the second target. Thus all data are gained for the determination of the error terms and measurements of unknown objects can be full polarimetrically calibrated. The procedures are shown for an adapted dihedral corner reflector. Misalignment errors are discussed
Keywords :
calibration; radar systems; adapted dihedral corner reflector; bistatic polarimetric radar systems; calibration technique; cross-polarization; error correction; external reference targets; misalignment errors; standard radiation transfer approach; Antenna measurements; Calibration; Error correction; Gain measurement; Instruments; Laboratories; Performance evaluation; Radar polarimetry; Radar scattering; Rotation measurement;
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/36.175318
Filename :
175318
Link To Document :
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