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Phase inconsistencies and multiple scattering in SAR interferometry

De Zan, Francesco and Zonno, Mariantonietta and López-Dekker, Paco (2015) Phase inconsistencies and multiple scattering in SAR interferometry. IEEE Transactions on Geoscience and Remote Sensing, 53 (12), pp. 6608-6616. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TGRS.2015.2444431 ISSN 0196-2892

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Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7147797

Abstract

With three coherent synthetic aperture radar images, it is possible to form three interferograms. In some cases, the phases of the three averaged interferograms will be significantly inconsistent and indicate a sort of phase excess or deficit (which we call lack of triangularity or inconsistency). In this paper, we illustrate theoretically which models can explain such phenomenon and provide some real-data examples. It is also shown that two or more independent scattering mechanisms are necessary to explain phase inconsistencies. The observation of lack of consistency might be useful to derive information on the target and as a warning that the scatterer presents a temporal covariance matrix which is not intrinsically real, with consequences for the processing of interferometric stacks.

Item URL in elib:https://elib.dlr.de/97170/
Document Type:Article
Additional Information:(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Title:Phase inconsistencies and multiple scattering in SAR interferometry
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
De Zan, FrancescoFrancesco.DeZan (at) dlr.deUNSPECIFIED
Zonno, MariantoniettaMariantonietta.Zonno (at) dlr.deUNSPECIFIED
López-Dekker, Pacofrancisco.dekker (at) dlr.deUNSPECIFIED
Date:December 2015
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:53
DOI :10.1109/TGRS.2015.2444431
Page Range:pp. 6608-6616
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:0196-2892
Status:Published
Keywords:Closure phase, inconsistency, multiple scattering, skewness, synthetic aperture radar (SAR) interferometry
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
Remote Sensing Technology Institute > SAR Signal Processing
Microwaves and Radar Institute
Microwaves and Radar Institute > Radar Concepts
Deposited By: De Zan, Francesco
Deposited On:09 Jul 2015 11:36
Last Modified:31 Jul 2019 19:53

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