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Spectral-Based Estimation of the Local Azimuth Ambiguity-to-Signal Ratio in SAR Images

Villano, Michelangelo and Krieger, Gerhard (2014) Spectral-Based Estimation of the Local Azimuth Ambiguity-to-Signal Ratio in SAR Images. IEEE Transactions on Geoscience and Remote Sensing, 52 (5), pp. 2304-2313. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TGRS.2013.2259244 ISSN 0196-2892

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Abstract

An innovative technique to estimate the local azimuth ambiguity-to-signal-ratio (AASR) in synthetic aperture radar (SAR) images is presented. Unlike the backscatter-based technique, the proposed one, based on the spectral properties of the image, does not require that the areas responsible for the ambiguity are within the focused image. Analysis of real TerraSAR-X data shows that the estimates of the proposed technique are consistent with the backscatter-based ones. Moreover, according to simulations, the proposed technique seems to provide more accurate estimates than the backscatter-based one, especially for high values of the local AASR.

Item URL in elib:https://elib.dlr.de/82197/
Document Type:Article
Title:Spectral-Based Estimation of the Local Azimuth Ambiguity-to-Signal Ratio in SAR Images
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Villano, MichelangeloUNSPECIFIEDUNSPECIFIED
Krieger, GerhardUNSPECIFIEDUNSPECIFIED
Date:May 2014
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:52
DOI :10.1109/TGRS.2013.2259244
Page Range:pp. 2304-2313
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:0196-2892
Status:Published
Keywords:Azimuth ambiguities, estimation, microwave remote sensing, spectral domain analysis, synthetic aperture radar (SAR).
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 Tandem-L Vorstudien
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Villano, Dr.-Ing. Michelangelo
Deposited On:07 May 2013 13:15
Last Modified:08 Mar 2018 18:34

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