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Volume decorrelation effects in polarimetric SAR interferometry

Alberga, V. (2004) Volume decorrelation effects in polarimetric SAR interferometry. IEEE Transactions on Geoscience and Remote Sensing, 42 (11), pp. 2467-2478.

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Abstract

Volume decorrelation is an aspect of SAR interferometry that is currently at stake. It stems from the distribution in height of the backscattering cross-section in a imaged scene and it widely affects interferometric coherence images, for example, in presence of forests or buildings. The interest in its reduction lies on the fact that ``resolving'' volume decorrelation and fixing the exact position of the scattering centres in a resolution cell may lead to an estimation of the height of the observed distributed scatterers. Indeed, the determination of the volume scattering contribution is determinant in digital elevation model (DEM) generation as well as in biomass estimation. However, volume decorrelation itself may be a source of information on the mechanisms which originate it. In this paper, a distinction is made between the behaviour of volume decorrelation due to random volumes and stationary distributed targets. The two cases are then studied by means of polarimetry: the response of such targets to different polarizations is considered by applying a series of decompositions of the scattering matrix and a systematic analysis of the interferometric coherence characteristics is reported.

Item URL in elib:https://elib.dlr.de/6208/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Volume decorrelation effects in polarimetric SAR interferometry
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Alberga, V.UNSPECIFIEDUNSPECIFIED
Date:2004
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:42
Page Range:pp. 2467-2478
Status:Published
Keywords:SAR polarimetry, target decomposition theorems, polarimetric SAR interferometry, volume decorrelation sources
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Aeronautics
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Alberga, Vito
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 19:55

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