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Decorrelation Effects in Bistatic TanDEM-X Data

Martone, Michele and Bräutigam, Benjamin and Krieger, Gerhard (2012) Decorrelation Effects in Bistatic TanDEM-X Data. In: Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 1-4. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2012-07-22 - 2012-07-27, Munich, Germany.

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Abstract

The TanDEM-X mission comprises two nearly identical satellites: TerraSAR-X and TanDEM-X. The primary objective of the mission is the generation of a worldwide and consistent digital elevation model (DEM) with an unprecedented accuracy. The two satellites fly in close orbit configuration and act as a large single-pass radar interferometer with the opportunity for flexible baseline selection, allowing the acquisition of highly accurate cross- and along-track interferograms. One of the key parameters in estimating interferometric performance is the coherence. Several error sources may contribute to coherence loss: in this paper, the impact of limited signal-to-noise ratio (SNR), volume decorrelation, and quantization errors are deeply investigated. Furthermore, a novel azimuth switched quantization (ASQ) technique is illustrated and preliminary performance assessment is presented.

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:Decorrelation Effects in Bistatic TanDEM-X Data
Authors:
AuthorsInstitution or Email of Authors
Martone, MicheleUNSPECIFIED
Bräutigam, BenjaminUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Date:26 July 2012
Journal or Publication Title:Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Page Range:pp. 1-4
Publisher:IEEE
Status:Published
Keywords:Bistatic synthetic aperture radar (SAR), interferometry, coherence, digital elevation model (DEM), TanDEM-X, azimuth-switched quantization (ASQ).
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:2012-07-22 - 2012-07-27
Organizer:IEEE
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 - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Michele Martone
Deposited On:03 Aug 2012 15:37
Last Modified:21 Mar 2014 15:05

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