JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2014, Vol. 31 ›› Issue (7): 128-134.DOI: 10.3969/j.issn.1001-5485.2014.07.025

• MONOGRAPH ON SAFETY MONITORING AND EARLYWARNING • Previous Articles    

Application of GB-SAR to Dam Monitoring

XING Cheng1, 2, HAN Xian-quan3, 4, ZHOU Xiao1, 2, WANG Peng1, 2   

  1. 1.School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    2. Key Laboratory of Precise Engineering and Industry Surveying under National Administration of Surveying, Mapping and Geoinformation, Wuhan University, Wuhan 430079, China;
    3. State Key Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
    4. Yangtze River Scientific Research Institute, Wuhan 430010, China
  • Received:2014-02-28 Revised:2014-07-03 Online:2014-07-01 Published:2014-07-04

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Abstract: GB-SAR (Ground Based Synthetic Aperture Radar) system could perform all-day, all-weather, non-contact and highly accurate deformation monitoring. In the present research, we employed GB-SAR to monitor the deformation at Geheyan Dam, and analyzed the impact of environmental factors on the monitoring result. Moreover, methods of environment correction were compared. By analyzing the correction results. we selected corresponding correction methods. Results show that the deformation information of the entire dam surface can be reflected accurately with the monitoring data corrected by the environmental correction methods, and these corrected data can be used for analyzing the stability of the dam.

Key words: GB-SAR, deformation monitoring, interferometry, environment correction

CLC Number: 

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