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dc.contributorDepartment of Land Surveying and Geo-Informatics-
dc.creatorJiang, M-
dc.creatorDing, X-
dc.creatorLi, ZW-
dc.publisherFaculty of Construction and Land Use, Hong Kong Polytechnic Universityen_US
dc.rights© 2011 Faculty of Construction and Land Use, The Hong Kong Polytechnic University.en_US
dc.subjectDetectable deformation gradient (DDG)en_US
dc.subjectLook numberen_US
dc.titleCoherence and the look number-based deformation gradient function model of INSARen_US
dc.typeConference Paperen_US
dc.description.otherinformationAuthor name used in this publication: X. L. Dingen_US
dcterms.abstractA 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.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationProceedings : 3rd International Postgraduate Conference on Infrastructure and Environment, v. 2, p. 534-540-
dc.description.oaVersion of Recorden_US
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