Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law

The effective-medium approximation is applied to investigate scattering from a half-space of randomly and densely distributed discrete scatterers. Starting from vector wave equations, an approximation, called effective-medium Born approximation, a particular way, treating Green's functions, and...

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Main Author: Zhu, P. Y.
Format: Other/Unknown Material
Language:unknown
Published: 1991
Subjects:
46
Sea ice
Online Access:http://ntrs.nasa.gov/search.jsp?R=19910060164
id ftnasantrs:oai:casi.ntrs.nasa.gov:19910060164
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19910060164 2023-05-15T18:18:13+02:00 Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law Zhu, P. Y. Unclassified, Unlimited, Publicly available Jun 1, 1991 http://ntrs.nasa.gov/search.jsp?R=19910060164 unknown http://ntrs.nasa.gov/search.jsp?R=19910060164 Accession ID: 91A44787 Copyright Other Sources 46 Nuovo Cimento C, Serie 1; 14 C; 263-283 1991 ftnasantrs 2012-02-15T19:04:24Z The effective-medium approximation is applied to investigate scattering from a half-space of randomly and densely distributed discrete scatterers. Starting from vector wave equations, an approximation, called effective-medium Born approximation, a particular way, treating Green's functions, and special coordinates, of which the origin is set at the field point, are used to calculate the bistatic- and back-scatterings. An analytic solution of backscattering with closed form is obtained and it shows a depolarization effect. The theoretical results are in good agreement with the experimental measurements in the cases of snow, multi- and first-year sea-ice. The root product ratio of polarization to depolarization in backscattering is equal to 8; this result constitutes a law about polarized scattering phenomena in the nature. Other/Unknown Material Sea ice NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 46
spellingShingle 46
Zhu, P. Y.
Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
topic_facet 46
description The effective-medium approximation is applied to investigate scattering from a half-space of randomly and densely distributed discrete scatterers. Starting from vector wave equations, an approximation, called effective-medium Born approximation, a particular way, treating Green's functions, and special coordinates, of which the origin is set at the field point, are used to calculate the bistatic- and back-scatterings. An analytic solution of backscattering with closed form is obtained and it shows a depolarization effect. The theoretical results are in good agreement with the experimental measurements in the cases of snow, multi- and first-year sea-ice. The root product ratio of polarization to depolarization in backscattering is equal to 8; this result constitutes a law about polarized scattering phenomena in the nature.
format Other/Unknown Material
author Zhu, P. Y.
author_facet Zhu, P. Y.
author_sort Zhu, P. Y.
title Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
title_short Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
title_full Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
title_fullStr Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
title_full_unstemmed Scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
title_sort scattering of electromagnetic waves from a half-space of randomly distributed discrete scatterers and polarized backscattering ratio law
publishDate 1991
url http://ntrs.nasa.gov/search.jsp?R=19910060164
op_coverage Unclassified, Unlimited, Publicly available
genre Sea ice
genre_facet Sea ice
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19910060164
Accession ID: 91A44787
op_rights Copyright
_version_ 1766194712179376128

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