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Investigations on the Polarimetric Behavior of a Target Near the Soil

Marquart, Nicolas Pascal and Molinet, Frédéric and Pottier, Eric (2006) Investigations on the Polarimetric Behavior of a Target Near the Soil. IEEE Transactions on Geoscience and Remote Sensing, 44 (10), pp. 2899-2907. DOI: 10.1109/TGRS.2006.877288.

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Abstract

The polarimetric behavior of the diffracted field from an object located close to the ground is investigated for a varying incidence angle. Here, the field is described by the geometrical theory of diffraction in accordance to its asymptotic formulas. As a result, a ray system composed of 13 different rays was implemented for the monostatic case by applying the principle of Fermat. The different spatial and creeping waves give a physical insight in the mechanisms involved in the entire scattering process. By varying the angle from perpendicular to grazing incidence 0°–90°, geometrical surface shadow boundaries are present for the backscattered field. At such boundaries, the spatial waves are replaced by their corresponding creeping waves, leading to a strong attenuation. The diffracted field for look angles related to the transition zones has a characteristic polarimetric behavior, which can be represented on the PoincarÉ sphere. The typical locations on the sphere can be exploited to get information about the geometrical parameters of the target and its height above the ground.

Document Type:Article
Additional Information:©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Title:Investigations on the Polarimetric Behavior of a Target Near the Soil
Authors:
AuthorsInstitution or Email of Authors
Marquart, Nicolas PascalUNSPECIFIED
Molinet, FrédéricMOTHESIM
Pottier, EricUniversity of Rennes 1
Date:October 2006
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Volume:44
DOI:10.1109/TGRS.2006.877288
Page Range:pp. 2899-2907
Status:Published
Keywords:Geometrical Theory of Diffraction (GTD), Uniform Theory of Diffraction (UTD), Surface Shadow Boundary (SSB), Polarimetry
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Microwave Systems
Microwaves and Radar Institute
Deposited By: Dr. Nicolas Pascal Marquart
Deposited On:16 Oct 2006
Last Modified:12 Dec 2013 20:21

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