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Analysis of Methods for Reconstructing Periodically Missed SAR Data Acquired Close to Nyquist

Pinheiro, Muriel and Rodriguez-Cassola, Marc and Prats, Pau and Reigber, Andreas (2012) Analysis of Methods for Reconstructing Periodically Missed SAR Data Acquired Close to Nyquist. In: Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 307-310. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2012-07-22 - 2012-07-27, Munich, Germany.

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Abstract

The cooperative nature of the TanDEM-X mission bistatic operation allows the periodically exchange of information between transmitter and receiver over the SAR acquisition. With the information gathered during the synchronization (sync) events it is possible to perform the phase and time referencing necessary for the calibration of the bistatic SAR image. However, given that transmitter and receiver are dedicated to the link during the sync events, the reception of SAR signal is periodically interrupted leading to gaps in the SAR raw data. Consequently, the processed SAR image will be corrupted, especially when acquiring close to the Nyquist rate. The paper addresses different approaches based on parametric and non-parametric spectral estimation to reconstruct the missing data and presents results with SAR data from TerraSAR-X and TanDEM-X.

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:Analysis of Methods for Reconstructing Periodically Missed SAR Data Acquired Close to Nyquist
Authors:
AuthorsInstitution or Email of Authors
Pinheiro, MurielUNSPECIFIED
Rodriguez-Cassola, MarcUNSPECIFIED
Prats, PauUNSPECIFIED
Reigber, AndreasUNSPECIFIED
Date:23 July 2012
Journal or Publication Title:Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Page Range:pp. 307-310
Publisher:IEEE
Status:Published
Keywords:TanDEM-X, bistatic, missing data, spectral estimation, reconstruction.
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 > SAR Technology
Deposited By: Pinheiro Muriel Aline
Deposited On:16 Jul 2012 13:21
Last Modified:21 Mar 2014 14:56

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