BDS基准网处理技术在大坝安全监测中的应用  

Application of BDS Datum Network Processing Technology in Dam Safety Monitoring

作　　者：史波 艾青松 张斌 徐黎 唐朝 李永华 SI Bo;AI Qingsong;ZHANG Bin;XU Li;TANG Zhao;LI Yonghua(Changjiang Space Information Technology Engineering Co.,Ltd.(Wuhan),Wuhan 430014,China;State Key Laboratory of Geodesy and Earth’s Dynamics,Innovation Academy for Precision Measurement Science and Technology,Wuhan 430077,China;Changjiang Institute of Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430014,China)

机构地区：[1]长江空间信息技术工程有限公司(武汉),湖北武汉430014 [2]中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室,湖北武汉430077 [3]长江勘测规划设计研究有限责任公司,湖北武汉430014

出　　处：《地理空间信息》2024年第11期57-61,共5页Geospatial Information

基　　金：湖北省自然科学基金资助项目(2023AFB435);大地测量与地球动力学国家重点实验室开放基金资助项目(SKLGED2024-3-3);湖北省博士后创新研究岗位资助项目(R22R6201)。

摘　　要：为准确了解大坝安全状态,减少传统大坝安全监测受气候、环境等因素的影响,基于BDS基准网处理技术实现了大坝安全监测自动化。在BDS基准网处理中,采用双差基线解算模型,并构建大气延迟修正算法,开发了BDS基准网处理软件。通过该软件在国内某大型水利大坝开展BDS安全监测应用测试,并将测试结果与商用软件TBC+COSA进行对比。结果表明,该软件在实验区域内的监测精度与商用软件相当,基于BDS-3和BDS-2/BDS-3两种模式下的水平定位精度均能达到±1 mm,说明该软件的解算成果可靠,也充分说明基于BDS-3的基准网处理技术可满足高精度自动化大坝安全监测的要求。In order to accurately obtain the dam status and reduce the influences of traditional dam safety monitoring by climate,environment and other factors,we realized the automation of dam safety monitoring based on BDS datum network processing technology.In the BDS datum network processing,we used double-difference baseline solution model to construct an atmospheric delay correction algorithm,and developed the BDS datum network processing software.Then,we used this software to carry out application tests in a water conservancy dam,and compared the results with the commercial software TBC+COSA.The results show that the monitoring accuracy of this software is comparable to that of the commercial software in this area,and the horizontal positioning accuracy based on BDS-3 and BDS-2/BDS-3 modes can reach±1 mm,which indicates that the solution of this software are reliable,and fully demonstrates that the datum network processing technology based on BDS-3 can satisfy the requirements of high-precision automation dam safety monitoring.

关 键 词：大坝安全监测 BDS基准网 双差基线解算 大气延迟修正 水平定位精度 

分 类 号：P228[天文地球—大地测量学与测量工程]