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Investigations on the Polarimetric Behavior of a Target Near the Soil

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

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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.

Zusätzliche Informationen:©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.
Titel:Investigations on the Polarimetric Behavior of a Target Near the Soil
AutorenInstitution oder E-Mail-Adresse der Autoren
Marquart, Nicolas PascalNICHT SPEZIFIZIERT
Molinet, FrédéricMOTHESIM
Pottier, EricUniversity of Rennes 1
Datum:Oktober 2006
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
DOI :10.1109/TGRS.2006.877288
Seitenbereich:Seiten 2899-2907
Stichwörter:Geometrical Theory of Diffraction (GTD), Uniform Theory of Diffraction (UTD), Surface Shadow Boundary (SSB), Polarimetry
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W - keine Zuordnung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):W -- keine Zuordnung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Mikrowellen-Systeme
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Dr. Nicolas Pascal Marquart
Hinterlegt am:16 Okt 2006
Letzte Änderung:12 Dez 2013 20:21

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