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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
