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An Investigation on Atmospheric Effects in Airborne Interferometric SAR data

Danklmayer, Andreas and Macedo, Karlus (2007) An Investigation on Atmospheric Effects in Airborne Interferometric SAR data. In: Proceedings of FRINGE. FRINGE, 2007-11-26 - 2007-11-30, Frascati, Italy.



The results of an experiment on atmospheric effects in interferometric SAR data are presented. The main purpose of the experiment was to investigate on the influence of the troposphere on airborne synthetic aperture radar measurements, acquired by DLR’s experimental E-SAR system. The analysed data was acquired at L-band. The main idea behind the experiment is to collect data sets at different atmospheric conditions and to compare the measurements by performing a differential interferometric analysis. The main difference between atmospheric conditions on “Day-One” and “Day-Two” of acquisition was a cloud layer between sensor and illuminated surface, reaching from 750 to 1500 m above sea-level (msl). The sensor altitude was about 4000 m (msl). The test site is located at 580 m (msl). The results of the experiment will be highlighted and an interpretation of the observed differential effects will be given. In a first investigation [1] no pronounced indication of atmospheric effects in L-band interferograms was found. In the paper here proposed, two different techniques, multisquint [2] and weighted phase curvature autofocus (WPCA) [3], are applied to accurately mitigate residual motion errors allowing a better interpretation of any possible atmospheric effects. [1] A. Danklmayer and K.A.C. de Macedo. An experiment on atmospheric effects in airborne interferometric SAR data, International Symposion on Antennas and Propagation (ISAP), Toki Messe, Niigata, Japan, 2007. [2] Prats, P. and Reigber, A. and Mallorqui, J. J.. Interpolation-Free Coregistration and Phase-Correction of Airborne SAR Interferograms. IEEE Geoscience and Remote Sensing Letters, vol. 1, no. 3, pp. 188-191, Jul. 2004. [3] K.A.C de Macedo, R. Scheiber and A. Moreira. An autofocus approach for residual motion errors with application to airborne repeat-pass SAR interferometry. IEEE Transactions on Geoscience and Remote Sensing, under review.

Item URL in elib:https://elib.dlr.de/51720/
Document Type:Conference or Workshop Item (Paper, Poster)
Title:An Investigation on Atmospheric Effects in Airborne Interferometric SAR data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:October 2007
Journal or Publication Title:Proceedings of FRINGE
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:SAR, propagation effects, atmospheric effects, DInSAR,
Event Title:FRINGE
Event Location:Frascati, Italy
Event Type:international Conference
Event Start Date:26 November 2007
Event End Date:30 November 2007
Organizer:European Space Agency
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 SAR-Expert-Support-Lab (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Microwave Systems
Microwaves and Radar Institute
Deposited By: Danklmayer, Dr.-Ing. Andreas
Deposited On:17 Dec 2007
Last Modified:24 Apr 2024 19:14

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