Integrated GPS And Interferometric SAR Techniques For Highly Dense Crustal Deformation Monitoring

Linlin GE, Horgne-Yue Chen, Shaowei Han and Chris Rizos

Abstract:	In the case of monitoring the crustal deformation due to active seismic fault or volcanic activity or subsidence due to underground mining, sub-kilometre resolution may be required. Therefore, the spatial resolution requirements cannot be economically satisfied using the current GPS techniques alone. Two solutions to the monitoring of highly dense crustal deformation are discussed. One solution, the so-called ‘hard densification’, is to use a subnetwork of single-frequency receivers to 'in-fill' the network of standard (dual-frequency) continuous GPS (CGPS) receivers, and to then use special data processing strategies to ensure that sub-part-per-million (ppm) relative accuracy can be achieved. Another solution, the so-called ‘soft densification’, is to integrate GPS and the Interferometric Synthetic Aperture Radar (InSAR). (The technique is referred to as 'soft densification' because no additional GPS hardware is needed.) The algorithms and experiments for the two densification schemes are presented.
Published in:	Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001) September 11 - 14, 2001 Salt Palace Convention Center Salt Lake City, UT
Pages:	2552 - 2563
Cite this article:	GE, Linlin, Chen, Horgne-Yue, Han, Shaowei, Rizos, Chris, "Integrated GPS And Interferometric SAR Techniques For Highly Dense Crustal Deformation Monitoring," Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001), Salt Lake City, UT, September 2001, pp. 2552-2563.
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