Design and Implementation of Bridge Vibration Monitoring Radar

doi:10.13474/j.cnki.11-2246.2018.0114

测绘通报 ›› 2018, Vol. 0 ›› Issue (4): 78-82.doi: 10.13474/j.cnki.11-2246.2018.0114

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Design and Implementation of Bridge Vibration Monitoring Radar

SHAO Zelong^1,3, GAO Zhuoyan², ZHANG Xiangkun^1,3

1. Key Lab of Microwave Remote Sensing, National Space Science Center, Beijing 100190, China;
2. Information and Communication Engineering College of Harbin Engineering University, Harbin 150001, China;
3. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2017-07-24 Revised:2017-09-13 Online:2018-04-25 Published:2018-05-03

Abstract

Abstract:

Faced with the problem of common bridge vibration detection methods,a new radar system was designed using linear frequency modulation continuous wave signal and interference measurement technology to measure the bridge vibration indirectly.It avoided problems such as complex detection process,high cost,low precision and low efficiency of common bridge vibration detection methods and acquired advantages such as high precision,easy operation,simple structure and low expense.Experiments of the bridge of Beijing Metro Line 13 which passed across north fourth ring road proved that the radar can measure the bridge's vibration rightly.The paper proposed a bridge vibration measure method based on radar echo data.Meanwhile,the radar acquired the micro-deformation message effectively and increased the resolution and efficiency for the bridge vibration monitoring.It was of great potential and could been applied to regions such as bridges monitoring,alarming and maintenance.

Key words: LFMCW, interferometry, bridge vibration monitoring

CLC Number:

P258

SHAO Zelong, GAO Zhuoyan, ZHANG Xiangkun. Design and Implementation of Bridge Vibration Monitoring Radar[J]. 测绘通报, 2018, 0(4): 78-82.

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Design and Implementation of Bridge Vibration Monitoring Radar

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