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Mitigation of Positioning Bias in PSI Point Clouds

Montazeri, Sina and Rodriguez Gonzalez, Fernando and Zhu, Xiao Xiang (2019) Mitigation of Positioning Bias in PSI Point Clouds. In: 2019 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 1-4. IEEE Xplore. IGARSS 2019, 28. Jul. - 02. Aug. 2019, Yokohama, Japan.

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Official URL: https://igarss2019.org/


In this paper, we propose a framework for geocoding error correction of point clouds obtained from Persistent Scatterer Interferometry (PSI) in urban areas. The horizontal positioning bias of Persistent Scatterers (PS) is mitigated by applying geodetic and atmospheric corrections to the PS azimuth and range timings. Furthermore, the vertical positioning bias, caused due to the unknown height of the PSI reference point, is estimated and compensated for by the use of Synthetic Aperture Radar (SAR)-based Ground Control Point (GCP)s. Experimental results based on cross-heading pairs of TerraSAR-X (TS-X) high resolution spotlight Images over the city of Berlin, Germany and in Oulu, Finland are presented. For selected test sites, the localization accuracy of the point clouds is analyzed with respect to a reference LiDAR data, which demonstrates the applicability of the proposed correction approach.

Item URL in elib:https://elib.dlr.de/128151/
Document Type:Conference or Workshop Item (Speech)
Title:Mitigation of Positioning Bias in PSI Point Clouds
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Montazeri, SinaSina.Montazeri (at) dlr.dehttps://orcid.org/0000-0002-6732-1381
Rodriguez Gonzalez, FernandoFernando.RodriguezGonzalez (at) dlr.deUNSPECIFIED
Zhu, Xiao Xiangxiaoxiang.zhu (at) dlr.dehttps://orcid.org/0000-0001-5530-3613
Journal or Publication Title:2019 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-4
Publisher:IEEE Xplore
Keywords:Geocoding, Persisitent Scatterer Interferometry, Positioning, Synthetic Aperture Radar, TerraSAR-X
Event Title:IGARSS 2019
Event Location:Yokohama, Japan
Event Type:international Conference
Event Dates:28. Jul. - 02. Aug. 2019
Organizer:IEEE GRSS
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 hochauflösende Fernerkundungsverfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > EO Data Science
Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Montazeri, Sina
Deposited On:01 Jul 2019 13:21
Last Modified:07 Nov 2019 12:04

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