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Title: Coherence and the look number-based deformation gradient function model of INSAR
Authors: Jiang, M
Ding, X
Li, ZW
Issue Date: Jul-2011
Source: Proceedings : 3rd International Postgraduate Conference on Infrastructure and Environment, v. 2, p. 534-540
Abstract: A new functional model for determining the minimum and maximum detectable deformation gradients of the interferometric synthetic aperture radar (InSAR) is developed. The model incorporates both the interferometric coherence and the look number, representing an extension to the existing models that consider only the interferometric coherence. Experimental results with Envisat ASAR data show that the new model performs well for interferograms with different look numbers. The model can serve as an important tool in determining whether InSAR technology can be used effectively to monitor a particular given ground subsidence. In addition, the model can also be used to determine the optimum look number for multi-looking operation to result in the best deformation monitoring results.
Keywords: InSAR
Detectable deformation gradient (DDG)
Coherence
Look number
Publisher: Faculty of Construction and Land Use, Hong Kong Polytechnic University
ISBN: 978-988-17311-7-3
Rights: © 2011 Faculty of Construction and Land Use, The Hong Kong Polytechnic University.
Appears in Collections:Conference Paper

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