DocumentCode :
753667
Title :
A new functional model for determining minimum and maximum detectable deformation gradient resolved by satellite radar interferometry
Author :
Baran, Ireneusz ; Stewart, Mike ; Claessens, Sten
Author_Institution :
Western Australian Centre for Geodesy, Curtin Univ. of Technol., Perth, WA, Australia
Volume :
43
Issue :
4
fYear :
2005
fDate :
4/1/2005 12:00:00 AM
Firstpage :
675
Lastpage :
682
Abstract :
In this paper, a functional model for determining the minimum and maximum detectable deformation gradient in terms of coherence for synthetic aperture radar (SAR) sensors is presented. The model is developed based on a new methodology that incorporates both real and simulated data. Sets of representative surface deformation models have been simulated, and the associated phase from these models introduced into real SAR data acquired by European Remote Sensing 1 and 2 satellites. Subsequently, interferograms were derived, and surface deformation was estimated. A number of cases of surface deformation with varying magnitudes and spatial extent have been simulated. In each case, the resultant surface deformation has been compared with the "true" surface deformation as defined by the deformation model. Based on these comparisons, a set of observations that lead to a new functional model has been established. Finally, the proposed model has been validated against external datasets and proven viable. Although the major weakness of the model is its reliance on visual interpretation of interferograms, this model can serve as a decision-support tool to determine whether or not to apply satellite radar interferometry to study a given surface deformation.
Keywords :
data acquisition; radiowave interferometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; topography (Earth); ERS satellites; European Remote Sensing 1; European Remote Sensing 2; SAR sensors; coherence; data acquisition; decision-support tool; deformation model; functional model; interferometric synthetic aperture radar; maximum detectable deformation gradient; minimum detectable deformation gradient; representative surface deformation models; satellite radar interferometry; visual interpretation; Analytical models; Australia; Deformable models; Layout; Radar detection; Radar interferometry; Remote sensing; Satellites; Synthetic aperture radar; Synthetic aperture radar interferometry; Coherence; European Remote Sensing (ERS) satellite; deformation; interferometric synthetic aperture radar (InSAR); radar interferometry;
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/TGRS.2004.843187
Filename :
1411973
Link To Document :
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