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Modified scattering decomposition for soil moisture estimation from polarimetric X-band data

Martone, Michele (2009) Modified scattering decomposition for soil moisture estimation from polarimetric X-band data. Masterarbeit, University of Naples "Federico II".

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Kurzfassung

Soil moisture content represents a key observable in order to model, describe and predict many ecological processes. In the last decades, theoretical and empirical inversion algorithms for soil moisture estimation using PolSAR data at L- and P-band have been intensively investigated, and, meanwhile, there exist some innovative techniques for the quantitative retrieval of dielectric constant of the soil. In this project work, the potential of estimating soil moisture from fully polarimetric X-band SAR data is investigated for the first time. The acquisitions were made by the German satellite TerraSAR-X over the agricultural area of Wallerfing (Lower Bavaria) in April/May 2009. Due to the short wavelength, the Physical Optics model has been chosen for representation of the scattering process and a model-based three component decomposition approach has been followed to exploit the polarimetric observable space. In order to improve the retrieval of the moisture content, the developed polarimetric decomposition has been further modified by means of an eigen-analysis of the coherency matrix and corrections of the volume scattering contribution were done. A validation of the proposed approaches for a quality assessment has been performed by comparing the estimated moisture values with in situ measurements collected in collaboration with the Ludwig-Maximilians-Universität (LMU) München.

Dokumentart:Hochschulschrift (Masterarbeit)
Titel:Modified scattering decomposition for soil moisture estimation from polarimetric X-band data
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Martone, MicheleNICHT SPEZIFIZIERT
Datum:Oktober 2009
Referierte Publikation:Ja
Seitenanzahl:153
Status:veröffentlicht
Stichwörter:Model-based decomposition, scattering models, inversion, soil moisture, synthetic aperture radar polarimetry (PolSAR).
Institution:University of Naples "Federico II"
Abteilung:School of Telecommunication Engineering
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben hochauflösende Fernerkundungsverfahreen (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Hinterlegt von: Michele Martone
Hinterlegt am:28 Dez 2009 19:03
Letzte Änderung:31 Jul 2014 15:49

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