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Passive microwave remote sensing of an anisotropic random-medium layerThe principle of reciprocity is invoked to calculate the brightness temperatures for passive microwave remote sensing of a two-layer anisotropic random medium. The bistatic scattering coefficients are first computed with the Born approximation and then integrated over the upper hemisphere to be subtracted from unity, in order to obtain the emissivity for the random-medium layer. The theoretical results are illustrated by plotting the emissivities as functions of viewing angles and polarizations. They are used to interpret remote sgnsing data obtained from vegetation canopy where the anisotropic random-medium model applies. Field measurements with corn stalks arranged in various configurations with preferred azimuthal directions are successfully interpreted with this model.
Document ID
19860032799
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lee, J. K.
(Syracuse University NY, United States)
Kong, J. A.
(MIT Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1985
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: GE-23
ISSN: 0196-2892
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
AD-A168912
Accession Number
86A17537
Funding Number(s)
CONTRACT_GRANT: N00014-83-K-0258
CONTRACT_GRANT: NAG5-270
CONTRACT_GRANT: NSF ECS-82-03390
Distribution Limits
Public
Copyright
Other

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