摘要
为了促进全球导航卫星系统(GNSS)桥梁健康监测方法的发展,详细综述了GNSS监测方法在各国桥梁健康监测领域的学术研究现状、热点方向、发展机遇及挑战。首先分别从初期监测试验、桥梁荷载试验和桥梁健康监测系统等方面对GNSS监测技术的试验研究进行了系统梳理;接着分别从多传感器监测技术、伪卫星增强技术、一机多天线技术、单频接收机监测技术等方面对GNSS信号采集方法进行了分析;然后从实时动态差分(RTK)技术、网络RTK(NRTK)技术、精密单点定位技术、信号降噪方法等方面对GNSS信号处理方法进行综合阐述;最后指出GNSS监测技术发展机遇以及面临的关键问题。综合分析表明:GNSS监测技术能实现高精度、全自动、全天候、三维的桥梁动态变形监测,有望成为一种理想的桥梁健康监测方法。
To improve the development of global navigation satellite system（GNSS）technology for bridge health monitoring,academic research status,hot research topics,and development opportunities and challenges about GNSS technology-based bridge health monitoring methods all around the world were summarized in detail.Firstly,experimental researches for GNSS-based bridge health monitoring were introduced systematically,covering preliminary monitoring tests,load tests and health monitoring system for bridges.Secondly,GNSS data acquisition techniques were analyzed,such as multi-sensor technique,pseudolite augment technique,multi-antenna technique and single-frequency receiver technique.Thirdly,GNSS data processing methods were introduced at great length,including real-time kinematic（RTK）,network-based RTK,precise point positioning and data de-noise technique.Finally,the paper illustrated the developmentopportunities and key issues for GNSS monitoring technology.The comprehensive analysis shows that GNSS-based monitoring technology can achieve 3D dynamic deformation monitoring for bridge with features of high accuracy,full automation,full time monitoring,which is hopeful to be an ideal bridge health monitoring method.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2016年第4期30-41,共12页
China Journal of Highway and Transport
基金
国家自然科学基金项目(51578227
50908083)
中央高校基本科研业务费专项资金项目(531107040891)
关键词
桥梁工程
结构健康监测
综述
GNSS
GPS
北斗导航卫星系统
bridge engineering
structural health monitoring
review
GNSS
GPS
Beidou Navigation Satellite System
