矿山近井点测量精密单点定位技术研究  

Research on technology of precise point positioning in near mine point measurement

作　　者：宋福成[1] 陈宜金[1] 杨汀[1] 时爽爽 

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083 [2]中国地震局第一监测中心,天津300180

出　　处：《煤炭科学技术》2017年第1期200-204,共5页Coal Science and Technology

基　　金：中央高校基本科研业务费专项资金资助项目(2010YD06)

摘　　要：针对传统测量方式布设近井点成本高、精度不统一等问题,提出利用IGS提供的精密轨道和星历产品,采用精密单点定位PPP技术建立近井点。为确定PPP技术的定位精度和收敛时间,分别使用Bernese 5.0软件和CSRS PPP软件解算2个IGS站和2个实测GPS观测数据。结果表明:精密单点定位的收敛时间约为30 min,定位精度达到厘米级;利用PPP技术测量某矿区的12个近井点,观测时间为2 h,使用Bernese 5.0软件解算,并将其与CORS-RTK测量、静态相对定位测量和导线测量坐标比较,点位精度优于5 cm,证明静态PPP技术可应用于近井点测量。According that establishing near mine points can be a costly business and precise inconsistent using traditional methods, so an approach of using Precise Point Positioning（PPP） combined with precise orbit and precise clock products to establish control points was presented by International GNSS Service （IGS）.To determining the accuracy and convergence time of Precise Point Positioning （PPP）, two observational stations data of International GNSS Service（IGS） and the real GPS data were dealt with and analyzed by using Bernese 5.0 and Canadian Spatial Reference System （CSRS） PPP online tool.The results indicated that the convergence time was about 30 min, and centimeter level accuracy was achieved.Then PPP was introduced in surveying 12 near mine points, and the coordinates were compared with that surveyed by Continuous Operational Reference System-Real Time Kinematic （CORS-RTK） ,static relative positioning and trav- erse survey.The results showed that accuracy was better than 5cm.This study showed that static PPP had a good performance in smveying near mine points.

关 键 词：全球定位系统 精密单点定位 近井点测量 定位精度 收敛时间 

分 类 号：TD172[矿业工程—矿山地质测量]