Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30643
Title: Robust estimating three-dimensional ground motions from fusion of InSAR and GPS measurements
Authors: Hu, J
Zhu, JJ
Li, ZW
Ding, XL 
Wang, CC
Sun, Q
Keywords: BFGS
GPS
InSAR
Three-dimensional displacements
Issue Date: 2011
Source: 2011 International Symposium on Image and Data Fusion, ISIDF 2011, 2011, 6024238 How to cite?
Abstract: InSAR can monitor surface defomation with high spatial resolution and high precision, but only in the line-of-sight (LOS) direction. In other side, GPS can monitor completely three-dimensional surface displacements, but only at sparse sites. A robust method based on the Gibbs energy function and BFGS method is used to derive three-dimensional ground motions from the fusion of InSAR and GPS measurement. Comparing to the previous approaches in the literatures, the robust method has the immunity to the numerical instability of the energy function, and therefore always produce stable and high precision solutions. The new method is then applied to area of Southern California. It is demonstrate that the robust method can estimate rigorous and reliable three-dimensional displacements even in the case of small number or unevenly distribution of GPS sites.
Description: 2011 International Symposium on Image and Data Fusion, ISIDF 2011, Tengchong, Yunnan, 9-11 August 2011
URI: http://hdl.handle.net/10397/30643
ISBN: 9781457709692
DOI: 10.1109/ISIDF.2011.6024238
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