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Multipolarization radar images for geologic mapping and vegetation discriminationNASA has developed an airborne SAR that simultaneously yields image data in four linear polarizations in L-band with 10-m resolution over a swath of about 10 km. Signal data are recorded both optically and digitally and annotated in each of the channels to facilitate completely automated digital correlation. Comparison of the relative intensities of the different polarizations furnishes discriminatory mapping information. Local intensity variations in like-polarization images result from topographic effects, while strong cross polarization responses denote the effects of vegetation cover and, in some cases, possible scattering from the subsurface. In each of the areas studied, multiple polarization data led to the discrimination and mapping of unique surface unit features.
Document ID
19860041579
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Evans, D. L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Farr, T. G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ford, J. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Thompson, T. W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Werner, C. L.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1986
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: GE-24
ISSN: 0196-2892
Subject Category
Geophysics
Accession Number
86A26317
Distribution Limits
Public
Copyright
Other

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