Title :
A least-squares approach for long-term monitoring of deformations with differential SAR interferometry
Author_Institution :
DEOS, Delft Univ. of Technol., Netherlands
Abstract :
A least-squares (LS) approach is presented for the retrieval of a temporal deformation sequence from a database of interferometric SAR images. The method uses a database of interferograms, and by solving all the deformations as a unique least squares problem provides a chronologically ordered sequence, describing the development of the deformation pattern in time. The LS approach is illustrated in detail and discussed with respect to the results of its application on a test site.
Keywords :
geodesy; geophysical signal processing; least squares approximations; monitoring; radar imaging; radiowave interferometry; remote sensing by radar; synthetic aperture radar; terrain mapping; D-InSAR; LS approach; chronologically ordered sequence; differential SAR interferometry; least-squares approach; long-term monitoring; temporal deformation sequence; Covariance matrix; Displacement measurement; Image databases; Image retrieval; Information retrieval; Interferometry; Least squares methods; Monitoring; Seismic measurements; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1025903
