Abstract：Research purposes: In the paper, the instruction is given to the principle, data acquirement geometry and data processing flowchart of SAR interferometry, including elevation measurement interferometry and deformation measurement differential interferometry. The comparison is made for technology with other digital elevation model generation methods. The application potentialities of radar differential interferometry to railway geologic disaster and roadbed deformation monitoring of Qinghai-Tibet Railway in permafrost zone are analyzed.
Research conclusions: (1) SAR interferometry has some unique advantages, and is suitable for the DEM with various range, high precision and high resolution. (2) The technology has huge application potentiality for railway survey and design, railway geologic disaster and roadbed deformation monitoring of Qinghai-Tibet Railway in permafrost zone.
谭衢霖，杨松林，魏庆朝. 合成孔径雷达干涉测量技术及铁路工程应用分析[J]. 铁道工程学报, 2008, 25(1): 11-16.
TAN Qu-lin, YANG Song-lin, WEI Qing-chao. SAR Interferometry Technology and its Application in Railway Construction. 铁道工程学报, 2008, 25(1): 11-16.
[1]Zebker H A,Goldstein R M. Topographic mapping from interferometric synthetic sperture radar observations[J]. J. Geophys. Res., 1986, 91(B5):4993-4999.
[2]Dens R, Van Gendern J L. SAR interferometry-issues, techniques, applications[J]. Int J Remote Sensing, 1996, 17(10):1803-1835.
[3]Gabriel A. K, Goldstein R. M and Zebker H. A. Mapping small elevation changes over large areas; Differential radar interferometry [J]. J. Geophys. Res., 1989, 94 (B7):9183-9191.
2008, Vol. 25 
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