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Correction of ionospheric distortions in low frequency interferometric SAR data

Kim, Jun Su and Danklmayer, Andreas and Papathanassiou, Konstantinos (2011) Correction of ionospheric distortions in low frequency interferometric SAR data. In: Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 1505-1508. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2011-07-24 - 2011-07-29, Vancouver, Canada. ISBN 978 1 4577 1004 9.

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Abstract

In this paper we propose some ionospheric correction schemes for space-borne synthetic aperture radar (SAR) and polarimetric interferometric SAR (PolInSAR). The spatial and temporal variation of the free electron density in the uppermost atmosphere affects the propagation of the radar pulse resulting in image distortions. We estimate the total electron content (TEC) by applying the Appleton-Hartree equation to the distortions in the focusing, polarimetry, and interferometry. Then we propose a combined estimator that yields comprehensive differential TEC estimations. The effect of vertical structures of the ionosphere on interferometric phase is further discussed.

Document Type:Conference or Workshop Item (Speech)
Additional Information:(c) 2011 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:Correction of ionospheric distortions in low frequency interferometric SAR data
Authors:
AuthorsInstitution or Email of Authors
Kim, Jun SuUNSPECIFIED
Danklmayer, AndreasUNSPECIFIED
Papathanassiou, KonstantinosUNSPECIFIED
Date:26 July 2011
Journal or Publication Title:Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Page Range:pp. 1505-1508
Publisher:IEEE
ISBN:978 1 4577 1004 9
Status:Published
Keywords:PolInSAR, ionosphere
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Vancouver, Canada
Event Type:international Conference
Event Dates:2011-07-24 - 2011-07-29
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 Prosmart, Smart-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Junsu Kim
Deposited On:08 Dec 2011 15:28
Last Modified:08 May 2014 23:22

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