INVESTIGATION ON URBAN GROUND DEFORMATION DETECTION THROUGH THREE PASS DIFFERENTIAL INTERFEROMETRY
Luo Xiaojun; Liu Guoxiang; and Huang Dingfa
Dept. of Surveying Engineering, Southwest Jiaotong University, Chengdu 610031
Abstract Using the C-band ERS-1/2 images of Shanghai，which were collected in 1996 and 1998 respectively,the three pass differential interferometry is carried out.The deformation for about two years at Lujiazui region of Shanghai is detected and the effects on DInSAR are also analyzed. The experiment shows that the urban deformation can be effectively detected by differential interferometry,but the effective methods will needed to eliminate or decrease the effect of atmospheric delay because urban constructions will result in decorrelation and atmospheric delay mainly affects the surveying accuracy.
Key words ：
SAR(Synthetic Aperture Radar)
three pass differential interferometry
urbanground deformation
atmospheric delay
Shanghai region
Received: 01 January 1900
Corresponding Authors:
Luo Xiaojun
Cite this article:
Luo Xiaojun,Liu Guoxiang,and Huang Dingfa. INVESTIGATION ON URBAN GROUND DEFORMATION DETECTION THROUGH THREE PASS DIFFERENTIAL INTERFEROMETRY[J]. , 2007, 27(4): 16-20.
Luo Xiaojun,Liu Guoxiang,and Huang Dingfa. INVESTIGATION ON URBAN GROUND DEFORMATION DETECTION THROUGH THREE PASS DIFFERENTIAL INTERFEROMETRY[J]. jgg, 2007, 27(4): 16-20.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I4/16
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