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Accounting for Azimuth Ambiguities in Interferometric Performance Analysis

Villano, Michelangelo and Krieger, Gerhard (2012) Accounting for Azimuth Ambiguities in Interferometric Performance Analysis. In: International Geoscience and Remote Sensing Symposium (IGARSS), pp. 299-302. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2012-07-22 - 2012-07-27, Munich, Germany. doi: 10.1109/igarss.2012.6351578.



Azimuth ambiguities affect the interferometric performance of SAR systems, causing a bias in the interferometric phase and a modulation of the interferometric coherence, as also visible in some TanDEM-X interferograms. This paper provides an explanation for this phenomenon and derives the analytical expressions for the phase bias and the coherence, resorting to the interferogram statistics for jointly circular Gaussian processes. The impact of azimuth ambiguities on the overall system performance is then considered. Plots are provided, which display the standard deviation of the phase bias, as well as the expected value and the standard deviation of the coherence loss component due to azimuth ambiguities. These plots can be useful for interferometric performance analysis.

Item URL in elib:https://elib.dlr.de/83034/
Document Type:Conference or Workshop Item (Speech)
Additional Information:©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Title:Accounting for Azimuth Ambiguities in Interferometric Performance Analysis
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:23 July 2012
Journal or Publication Title:International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 299-302
Keywords:Azimuth ambiguities, interferometry, microwave remote sensing, synthetic aperture radar (SAR)
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Munich, Germany
Event Type:international Conference
Event Start Date:22 July 2012
Event End Date:27 July 2012
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Villano, Dr.-Ing. Michelangelo
Deposited On:24 Jun 2013 11:01
Last Modified:24 Apr 2024 19:49

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