大地测量与地球动力学2026，Vol.46Issue(1)：123-130,8.DOI:10.14075/j.jgg.2024.12.555
普适性北斗/GNSS用于大型桥梁水位监测研究
Monitoring Water Level in Large Bridge Structures Using Universal BDS/GNSS
摘要
Abstract
Based on ground-based single-antenna GNSS receivers,the global navigation satellite sys-tem-interferometric reflectometry(GNSS-IR)technique can utilize the signal-to-noise ratio(SNR)to invert the vertical distance between the reflective surface and the antenna,thereby estimating water level heights.To reduce equipment costs and enhance the accessibility of GNSS-IR technology,while fully leveraging existing deformation monitoring GNSS stations,this study proposes the use of uni-versal BDS/GNSS receivers for monitoring the structural deformation of large bridges.By integrating quality control,error correction models,and result fusion methods,effective monitoring of water lev-el changes beneath bridges is achieved.Processing data from two universal BDS/GNSS receivers in-stalled on the main cable of the Guojiatuo Changjiang bridge in Chongqing,which are used for monito-ring bridge structural deformation,the study results indicate that the GNSS-IR water level time se-ries,after quality control,error correction,and fusion processing,are highly consistent with the data trends from traditional hydrological stations,with a correlation coefficient reaching 0.99.This out-come not only validates the feasibility of this method in monitoring water level changes beneath large bridges but also demonstrates the broad application prospects of universal BDS/GNSS receivers in riv-er water level monitoring,providing robust data support for flood early warning and water resource assessment.关键词
普适性/GNSS-IR/SNR/北斗/桥梁水位监测Key words
universal/GNSS-IR/SNR/BDS/bridge water level monitoring分类
天文与地球科学引用本文复制引用
王恒利,张双成,赵立都,张磊,周昕,刘宁..普适性北斗/GNSS用于大型桥梁水位监测研究[J].大地测量与地球动力学,2026,46(1):123-130,8.基金项目
国家自然科学基金(42474028) （42474028）
重庆交通大学山区桥梁及隧道工程国家重点实验室开放基金(SKLBT-2406) （SKLBT-2406）
2022年江苏省科技成果转化专项(BA2022009). （BA2022009）
