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Non-Linear Least Squares Algorithm for Detection of Simple and Double Persistent Scatterers

Danisor, Cosmin and Fornaro, Gianfranco and Datcu, Mihai (2017) Non-Linear Least Squares Algorithm for Detection of Simple and Double Persistent Scatterers. In: Geoscience and Remote Sensing Symposium (IGARSS), 2017 IEEE International, pp. 6020-6023. IEEE Xplore. IGARSS 2017, 23.-28. Juli 2017, Fort Worth, TX, USA. DOI: 10.1109/IGARSS.2017.8128382 ISSN 2153-7003

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Official URL: http://ieeexplore.ieee.org/document/8128382/


Synthetic Aperture Radar (SAR) Tomography is a multi-temporal technique which can reconstruct the 3D profile of a scene. One of its main features consists in the ability to detect the presence of multiple Persistent Scatterers (PS) within the same resolution cell. This paper aims to investigate the super-resolution capabilities of SAR Tomography, by detecting targets situated at a distance which is close to Rayleigh resolution. Elevation positions of scatterers are determined with Capon estimation, which is characterized by higher side-lobs reduction. An adapted form of multi-looking is proposed for extraction of targets contribution from reconstructed reflectivity functions and for estimation of reflectivity power textures. An algorithm for detection of dominant and secondary PSs will be conducted based on the derived reflectivity estimates, trying to preserve the advantages of Capon filtering used for reflectivity reconstruction.

Item URL in elib:https://elib.dlr.de/118565/
Document Type:Conference or Workshop Item (Speech)
Title:Non-Linear Least Squares Algorithm for Detection of Simple and Double Persistent Scatterers
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Danisor, CosminUniversity Politehnica BucharestUNSPECIFIED
Fornaro, GianfrancoNational Research Council, ItalyUNSPECIFIED
Datcu, Mihaimihai.datcu (at) dlr.deUNSPECIFIED
Date:July 2017
Journal or Publication Title:Geoscience and Remote Sensing Symposium (IGARSS), 2017 IEEE International
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1109/IGARSS.2017.8128382
Page Range:pp. 6020-6023
Publisher:IEEE Xplore
Keywords:Squares Algorithm , persistent scatterers
Event Title:IGARSS 2017
Event Location:Fort Worth, TX, USA
Event Type:international Conference
Event Dates:23.-28. Juli 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Zielske, Mandy
Deposited On:01 Feb 2018 18:38
Last Modified:01 Feb 2018 18:38

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