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3D forest structure estimation from sar tomography by means of a full rank polarimetric inversion based on compressive sensing

Cazcarra-Bes, Victor and Tello Alonso, Marivi and Papathanassiou, Konstantinos (2015) 3D forest structure estimation from sar tomography by means of a full rank polarimetric inversion based on compressive sensing. In: Proceedings of ESA POLinSAR Workshop. ESA Communications. ESA POLinSAR Workshop, 2015-01-26 - 2015-01-30, Frascati, Italy.

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Abstract

SAR tomography (TomoSAR) techniques allow a direct 3D imaging by exploiting angular diversity with different passes of the sensor. One of the main drawbacks of SAR tomography is that the estimation of the vertical reflectivity profile has to be performed through a limited set of multibaseline acquisitions, which requires solving a highly underdetermined system of equations. In TomoSAR literature, the Capon and the Fourier beamforming spectral estimators are widely employed. As an alternative, the application of Compressive Sensing (CS) techniques to the estimation of forest profiles has been recently introduced. In this paper, a different algorithm based on CS is proposed. It performs a full rank polarimetric inversion, allowing thus an estimation of the 3D coherency matrices. To study the full rank polarimetric TomoSAR inversion, a temporal series of airborne data is used. The results of the 3D polarimetric inversion will be contrasted to in situ measurements and LIDAR data.

Item URL in elib:https://elib.dlr.de/95477/
Document Type:Conference or Workshop Item (Poster)
Title:3D forest structure estimation from sar tomography by means of a full rank polarimetric inversion based on compressive sensing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Cazcarra-Bes, VictorUNSPECIFIEDUNSPECIFIED
Tello Alonso, MariviUNSPECIFIEDUNSPECIFIED
Papathanassiou, KonstantinosUNSPECIFIEDUNSPECIFIED
Date:January 2015
Journal or Publication Title:Proceedings of ESA POLinSAR Workshop
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
Lacoste-Francis, H.esapub@esa.int
Publisher:ESA Communications
Status:Published
Keywords:SAR tomography, polarimetry, 3D forest structure, compressive sensing
Event Title:ESA POLinSAR Workshop
Event Location:Frascati, Italy
Event Type:international Conference, Workshop
Event Dates:2015-01-26 - 2015-01-30
Organizer:ESA-ESRIN
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Cazcarra-Bes, Victor
Deposited On:04 Mar 2015 16:40
Last Modified:20 Jan 2016 09:46

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