测绘通报 ›› 2017, Vol. 0 ›› Issue (6): 94-97.doi: 10.13474/j.cnki.11-2246.2017.0198

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A Novel FMCW GB-SAR Based Bridge Deformation Measurement Campaign

GUO Peng1, ZHANG Haoyu2, CHEN Li3, ZHOU Keqin1, WANG Chunlai4   

  1. 1. Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
    2. Zhejiang Ocean University, Zhoushan 306022, China;
    3. Beijing FSD Technology Co. Ltd., Beijing 100078, China;
    4. Armed Police Gold of The Seventh Detachment, Yantai 264004, China
  • Received:2016-10-10 Online:2017-06-25 Published:2017-07-03

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Abstract: Ground-based synthetic aperture radar (GB-SAR) is a new type of building deformation monitoring technologies. Compared with the traditional monitoring methods, this method features high precision and large area. Fast-GBSAR is designed based on the frequency modulated continuous wave (FMCW) technology. Compared with the similar system based on the stepping continuous wave technology in China, the processing speed of the system is increased by 30 times and the reliability is higher. Fast-GBSAR has carried on the public test to many bridges in the country, the monitoring result indicated that Fast-GBSAR measurement precision can achieve 0.01 mm. Fast-GBSAR has the great potential in the deformation monitoring domain.

Key words: ground-based synthetic aperture radar, frequency modulated continuous wave, bridge deformation monitoring

CLC Number: