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A laboratory study of the electromagnetic bias of rough surface scattering by water wavesThe design, development, and use of a focused-beam radar to measure the electromagnetic bias introduced by the scattering of radar waves by a roughened water surface are discussed. The bias measurements were made over wide ranges of environmental conditions in a wavetank laboratory. Wave-elevation data were provided by standard laboratory capacitance probes. Backscattered radar power measurements coincident in time and space with the elevation data were produced by the radar. The two data sets are histogrammed to produce probability density functions for elevation and radar reflectivity, from which the electromagnetic bias is computed. The experimental results demonstrate that the electromagnetic bias is quite variable over the wide range of environmental conditions that can be produced in the laboratory. The data suggest that the bias is dependent upon the local wind field and on the amplitude and frequency of any background wave field that is present.
Document ID
19910033287
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Parsons, Chester L.
(NASA Wallops Flight Center Wallops Island, VA, United States)
Miller, Lee S.
(Clemson University SC, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1990
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 28
ISSN: 0196-2892
Subject Category
Communications And Radar
Accession Number
91A17910
Distribution Limits
Public
Copyright
Other

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