THE GAMMA-BASED TWO-TRACK DIFFERENTIAL PRINCIPLES AND EXPERIMENTAL DATA PROCESSING
TIAN Hui1,2, SUN Qi-fa2, WANG Fu-gang1, MA Shi-min2, TAO Chuan-zhong2
1. Institute of Environment and Resources, Jilin University, Changchun 130026, China; 2. Shenyang Institute of Geology and Mineral Resources, Shenyang 110026, China
Abstract：The technique of synthetic aperture radar interferometry (InSAR), with development more than a decade, has been widely used in various fields of earth sciences. GAMMA, one of the most popular application software, adopts two-rail differential approach to process the SAR data in the experimental area with registration, filtering, flat-earth removal phase, unwrapping and differential treatment, and finally get vertical deformation map, achieving surface deformation monitoring. The SAR data of this study is from ESS-2 satellite, with DEM resolution of 30 meters. The minimum cost flow method is adopted to unwrap the deformation in the direction of radar sight line, and then generate the vertical deformation map. The result shows that subsidence is notable in the city and its surroundings in the study area but rare in the mountainous area.
田辉, 孙岐发, 王福刚, 马诗敏, 陶传忠. 基于GAMMA软件的二轨差分原理及实验数据处理[J]. 地质与资源, 2017, 26(4): 403-406,402.
TIAN Hui, SUN Qi-fa, WANG Fu-gang, MA Shi-min, TAO Chuan-zhong. THE GAMMA-BASED TWO-TRACK DIFFERENTIAL PRINCIPLES AND EXPERIMENTAL DATA PROCESSING. GEOLOGY AND RESOURCES, 2017, 26(4): 403-406,402.
2017, Vol. 26 
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