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Correcting Distortion of Polarimetric SAR Data Induced by Ionospheric Scintillation

Kim, Jun Su and Papathanassiou, Konstantinos and Scheiber, Rolf and Quegan, Shaun (2015) Correcting Distortion of Polarimetric SAR Data Induced by Ionospheric Scintillation. IEEE Transactions on Geoscience and Remote Sensing, 53 (12), pp. 6319-6335. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2015.2431856. ISSN 0196-2892.

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7180360&tag=1


A correction methodology for distortions induced by ionospheric scintillation on fully polarimetric synthetic aperture radar (SAR) data is proposed. The correction is based on deriving the phase distortion induced by the ionosphere from Faraday rotation estimates. The estimated phase distortion is then used for correction. In order to compensate the phase and time-Doppler history distortions, the correction has to be performed at the slant range of the ionospheric layer, i.e., on partially focused single-look complex data. Accordingly, the performance of the proposed correction methodology depends, among other factors, on knowledge of the altitude of the effective ionospheric layer (assuming the thin ionospheric layer model). Its estimation from the SAR data itself is therefore also addressed. The methodology was applied and validated on simulated P-band data for various ionospheric conditions and on real L-band data acquired by the Advanced Land Observation Satellite Phased Array L-band SAR (PALSAR).

Item URL in elib:https://elib.dlr.de/99792/
Document Type:Article
Title:Correcting Distortion of Polarimetric SAR Data Induced by Ionospheric Scintillation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Papathanassiou, KonstantinosUNSPECIFIEDUNSPECIFIED
Quegan, ShaunUniversity of SheffieldUNSPECIFIED
Date:December 2015
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/TGRS.2015.2431856
Page Range:pp. 6319-6335
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Faraday effect, ionosphere, polarimetry, spaceborne radar, 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 - Earth Observation
DLR - Research theme (Project):R - Vorhaben Multi-dimensionale SAR-Auswertung (old), R - Vorhaben Tandem-L Vorstudien (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Kim, Junsu
Deposited On:26 Nov 2015 15:30
Last Modified:31 Jul 2019 19:56

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