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Geostatistical analysis and mitigation of atmospheric phase screens in Ku-band terrestrial radar

Baffelli, Simone and Frey, Othmar and Hajnsek, Irena (2018) Geostatistical analysis and mitigation of atmospheric phase screens in Ku-band terrestrial radar. In: 38th annual symposium of the IEEE Geoscience and Remote Sensing Society (GRSS), pp. 6504-6507. IEEE. International Geoscience and Remote Sensing Symposium (IGARSS) 2018, 22.-27. Juli 2018, Valencia, Spanien. DOI: 10.1109/IGARSS.2018.8517479 ISBN 978-1-5386-7150-4 ISSN 2153-7003

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Official URL: https://ieeexplore.ieee.org/document/8517479

Abstract

A geostatistical analysis of the atmospheric phase screen (APS) affecting Ku-Band terrestrial radar interferometric (TRI) observations of a fast-flowing alpine glacier is made assuming a separable spatio-temporal covariance structure. Such a structure facilitates the mitigation of APS: the atmospheric phase affecting individual interferograms can be extrapolated form a set of persistent scatterers (PS) using regression-Kriging. After removing this estimate the residual APS is only correlated in time; its effect on surface displacement estimation is mitigated with a generalized least squares (GLS) inversion employing an estimate of the temporal covariance of the APS. The applicability of a separable covariance structure and the performance of the APS correction method are assessed on a TRI timeseries of Bisgletscher, a glacier in the southwestern Swiss Alps.

Item URL in elib:https://elib.dlr.de/127338/
Document Type:Conference or Workshop Item (Speech)
Title:Geostatistical analysis and mitigation of atmospheric phase screens in Ku-band terrestrial radar
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Baffelli, SimoneETH ZurichUNSPECIFIED
Frey, OthmarETH ZurichUNSPECIFIED
Hajnsek, IrenaDLR-HR, ETH ZurichUNSPECIFIED
Date:2018
Journal or Publication Title:38th annual symposium of the IEEE Geoscience and Remote Sensing Society (GRSS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.1109/IGARSS.2018.8517479
Page Range:pp. 6504-6507
Publisher:IEEE
Series Name:IEEE Xplore Digital Library
ISSN:2153-7003
ISBN:978-1-5386-7150-4
Status:Published
Keywords:Ku-Band, terrestrial radar interferometric (TRI) observations, atmospheric phase screen (APS), persistent scatterers (PS)
Event Title:International Geoscience and Remote Sensing Symposium (IGARSS) 2018
Event Location:Valencia, Spanien
Event Type:international Conference
Event Dates:22.-27. Juli 2018
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 - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Sicherheitsrelevante Erdbeobachtung
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Radzuweit, Sibylle
Deposited On:09 May 2019 13:45
Last Modified:31 Jul 2019 20:25

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