Title :
Subsidence and DSM estimation using GeoWatch software
Author :
Zhao, Aiguo ; Lin, Hui ; Guo, Huadong ; Chen, XJinsong ; Jiang, Liming
Author_Institution :
GeoWatch Technol. Inc., Toronto, ON, Canada
Abstract :
A new integrated SAR signal processor, geo-coding and interferometric processing commercial software (GeoWatch software) has been developed. It supports high speed and large data processing based on ERS-1&2, ENVISAT, ALOS PALSAR, JERS-1, RADARSAT-1&2, TerraSAT and CSK SAR data, with user friendly GUI and parallel processing on the latest 64 bit Windows and UNIX/Linux systems and both personal computers and powerful multicore CPU+GPU cluster platforms. It has been applied to the DSM estimation in a mountain area and subsidence estimation at an airport using its application-oriented step-by-step pipeline processing, and the results showed the following key features: 1. Deformation monitoring coverage expansion from coherent points to distributed scatters; 2. Deformation monitoring period reduction and accuracy improving by multi-track SAR interferometric processing; 3. Truly ortho-rectified interferogram, image, digital surface model (DSM) and deformation map production.
Keywords :
Linux; airports; digital elevation models; geomorphology; geophysical image processing; graphical user interfaces; parallel processing; pipeline processing; radar interferometry; remote sensing by radar; synthetic aperture radar; terrain mapping; workstation clusters; ALOS PALSAR; CSK SAR; DSM estimation; ENVISAT; ERS-2; GUI; GeoWatch software; JERS-1; Linux system; RADARSAT-1; RADARSAT-2; SAR signal processor; TerraSAT; UNIX system; Windows; airport; commercial software; coverage expansion; data processing; deformation map production; deformation monitoring; digital surface model; geocoding; multicore CPU cluster platform; multicore GPU cluster platform; multitrack SAR interferometric processing; orthorectified interferogram; parallel processing; period reduction; personal computers; pipeline processing; subsidence; Accuracy; Airports; Data processing; Estimation; Monitoring; Software; Synthetic aperture radar; DSM; GeoWatch; InSAR; SAR; geo-coding; interferometry; software; subsidence;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6049537
