Volume 37 Issue 10
Oct.  2012
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HUANG Shengxiang, LUO Li, HE Chao. Comparative Test Analysis for Determining Bridge Deflection by Using Ground-Based SAR and GPS[J]. Geomatics and Information Science of Wuhan University, 2012, 37(10): 1173-1176.
Citation: HUANG Shengxiang, LUO Li, HE Chao. Comparative Test Analysis for Determining Bridge Deflection by Using Ground-Based SAR and GPS[J]. Geomatics and Information Science of Wuhan University, 2012, 37(10): 1173-1176.
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Comparative Test Analysis for Determining Bridge Deflection by Using Ground-Based SAR and GPS

  • 1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2 Esri China Information Technology Co.,Ltd.,A 3 South Dongzhimen Street,Beijing 100007,China

Funds: 国家863计划资助项目(2009AA12Z311);;精密工程与工业测量国家测绘地理信息局重点实验室开放研究基金资助项目(PF2011-11)
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  • Received Date: August 21, 2011
  • Published Date: October 04, 2012
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  • By the stepped frequency-continuous wave technology,synthetic aperture radar and interferometric techniques,combining integrated ground-based SAR,can achieve high-precision monitoring of static and dynamic targets on the ground.This paper describes the dynamic deflection test carried out by the IBIS in the Wuhan Yangluo Yangtze River Bridge,and GPS measurements were compared.The results show that the ground-based SAR can not only fine to measure the dynamic changes in the bridge deflection,high accuracy;and can truly reflect the structure of the dynamic deformation characteristics,its high sampling rate feature provides a new means of technology for the bridge vertical bending test.
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