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REGULARIZATION PARAMETER SELECTION FOR TOMOSAR IMAGING WITH SINGLE AND DUAL POLARIMETRIC OBSERVATIONS

Martin del Campo Becerra, Gustavo Daniel and Torres García, Eduardo and Serafín García, Sergio Alejandro and Torres Román, Deni Librado and Reigber, Andreas (2022) REGULARIZATION PARAMETER SELECTION FOR TOMOSAR IMAGING WITH SINGLE AND DUAL POLARIMETRIC OBSERVATIONS. In: 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022, pp. 68-71. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2022-07-17 - 2022-07-22, Kuala Lumpur, Malaysia. doi: 10.1109/IGARSS46834.2022.9884893. ISBN 978-166542792-0. ISSN 2153-7003.

Full text not available from this repository.

Official URL: https://ieeexplore.ieee.org/document/9884893

Abstract

Polarimetric focusing techniques for synthetic aperture radar (SAR) tomography (TomoSAR) pursue finding optimal polarization combinations to extract the associated scattering mechanisms and height of reflectors. Regularization approaches like weighted covariance fitting (WCF), implemented in an iterative manner, attain finer resolution than conventional focusing techniques (e.g., Capon). Such approaches normally entail the selection of a regularization parameter and a first estimate of the power spectrum pattern. Regularization parameter selection via L-Curve method requires providing the scattering vector; nonetheless, it may not be always available, especially when not working at full resolution. Manipulations previously done to the data covariance matrix (e.g., pre-summing) must be equivalent in the scattering vector, which may not be at all times feasible. Accordingly, this article suggests modifying the L-Curve method to work exclusively with data covariance matrices. The proposed novel strategy is applied to WCF, considering single and dual channels. Iterations are stopped based on the Akaike information criterion.

Item URL in elib:https://elib.dlr.de/186871/
Document Type:Conference or Workshop Item (Lecture)
Title:REGULARIZATION PARAMETER SELECTION FOR TOMOSAR IMAGING WITH SINGLE AND DUAL POLARIMETRIC OBSERVATIONS
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Martin del Campo Becerra, Gustavo DanielGustavo.MartindelCampoBecerra (at) dlr.dehttps://orcid.org/0000-0003-1642-6068
Torres García, EduardoEduardo.Torres (at) cinvestav.mxUNSPECIFIED
Serafín García, Sergio AlejandroSergio.SerafinGarcia (at) dlr.dehttps://orcid.org/0000-0003-2986-3793
Torres Román, Deni LibradoDeni.Torres (at) cinvestav.mxUNSPECIFIED
Reigber, AndreasAndreas.Reigber (at) dlr.dehttps://orcid.org/0000-0002-2118-5046
Date:July 2022
Journal or Publication Title:2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.1109/IGARSS46834.2022.9884893
Page Range:pp. 68-71
ISSN:2153-7003
ISBN:978-166542792-0
Status:Published
Keywords:L-Curve, synthetic aperture radar (SAR), tomography, weighted covariance fitting (WCF).
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Kuala Lumpur, Malaysia
Event Type:international Conference
Event Dates:2022-07-17 - 2022-07-22
Organizer:IEEE GRSS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Aircraft SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Martin del Campo Becerra, Gustavo
Deposited On:15 Jun 2022 15:01
Last Modified:13 Jan 2023 15:21

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