GNSS位移监测数据渐进式分析表征方法  

Research on progressive analysis and characterization method of GNSS displacement monitoring data

作　　者：魏世玉 董涛 邓鑫洁 李川 WEI Shiyu;DONG Tao;DENG Xinjie;LI Chuan(Chongqing Yier Public Security Emergency Industry Development Company Limited,Chongqing 401120,China;Sichuan Transportation Construction Group Company Limited,Chengdu Sichuan 610000,China;Chongqing Jianzhu College,Chongqing 400072,China)

机构地区：[1]重庆益尔公共安全应急产业发展有限公司,重庆401120 [2]四川交通建设集团股份有限公司,四川成都610000 [3]重庆建筑工程职业学院,重庆400072

出　　处：《北京测绘》2023年第3期433-437,共5页Beijing Surveying and Mapping

基　　金：重庆市教委科学技术研究项目(KJQN201904307)。

摘　　要：为进一步挖掘全球导航卫星系统(GNSS)位移监测数据中包含的变形信息,提升数据使用质效,更好地服务于预警工作。本文以GNSS实测数据为研究对象,采用点—线—面逐级分析,累计量—速率—加速度渐进刻画的方法。结合某滑坡监测实例,重点探究了粗差剔除、三维分量分析、位移矢量分析方法;指出来不利方向投影分析、顶底改正的重要性;论述了监测剖面分析及区域分析的重点内容。结果表明,该方法可较好地挖掘和甄别形变特征,其实用性较强,可为GNSS位移监测预警参数选择及其判据设定提供依据,亦可为同类位移监测数据分析提供有益参考。In order to furtherly excavate the displacement information of global navigation satellite system(GNSS)monitoring data,promote the quality and efficiency in data application,and serving the early warn better.In this paper,taking GNSS monitoring data as the research object,combining with points-sections-regions step by step analysis,a cumulative displacement-rate-acceleration progressive characterization method was put forward.Combined with a landslide monitoring example,gross error elimination,three-dimensional component analysis and displacement vector analysis method were mainly explored.Points out the importance of unfavourable direction projection analysis and top-bottom correction;the key contents of monitoring sections and regionals analysis were discussed.The results showed that the method could better excavate and identify the deformation characteristics,and its practicability was strong.It could provide a basis for the selection of GNSS displacement monitoring and early warning parameters and its criterion setting,and could also provide a useful reference for the analysis of similar displacement monitoring data.

关 键 词：位移监测 渐进分析 位移矢量 不利方向 顶底归算 

分 类 号：P228.[天文地球—大地测量学与测量工程]