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Multifrequency, Multipolarization External Calibration of the SIR-C/X-SAR RadarsProgress and the future plans for the following objectives are discussed: (1) Assess the accuracy at which the SIR-C/X-SAR standard data products can be calibrated through the use of ground calibrators to estimate the end-to-end system polarization calibration constants (or distortion parameters) and incorporate the constants into the data processing; (2) Study the cross-calibration between three multipolarization systems: SIR-C, the National Aeronautics and Space Administration/Jet Propulsion Laboratory (NASA/JPL) DC-8 SAR, and the University of Michigan ground-based polarimetric scatterometer; (3) Evaluate the calibration "stability" of SIR-C/X-SAR (measured by variations in the calibration constants) over the range swath width and over a specified distance in azimuth. Variations over a 12-hour period (between ascending and descending passes) will also be studied; and (4) Develop a cost-effective calibration plan including development of inexpensive polarimetric active calibrators.
Document ID
19980015286
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other
Authors
Freeman, Anthony
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Sarabandi, K.
(Michigan Univ. Ann Arbor, MI United States)
Date Acquired
August 17, 2013
Publication Date
April 1, 1996
Publication Information
Publication: Science Results from the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR): Progress Report
Subject Category
Communications And Radar
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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