中长基线精密定位基准站选取方案研究  

Study on Selection Scheme of Medium and Long Baseline Precision Positioning Base Station

作　　者：张金旭 杨强[2] 王虎[2] 谷世铭 任政兆 ZHANG Jinxu;YANG Qiang;WANG Hu;GU Shiming;REN Zhengzhao(College of Geomatics,Shandong University of Science and Technology,Qingdao Shandong 266000,China;China Academy of Surveying and Mapping,Beijing 100000,China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛192393 [2]中国测绘科学研究院,北京100000

出　　处：《北京测绘》2019年第8期877-881,共5页Beijing Surveying and Mapping

基　　金：国家重点研发计划(2016YFB0501405);国家自然科学基金(41874042);国家科技重大专项(CFZX0301040308-06)

摘　　要：高精度中长基线静态精密定位解算精度受多种因素影响,其中板块运动、基准站选取策略差异,对定位精度产生较大影响。本文利用我国周边IGS站和国内CORS站网作为基准站,定量分析不同基准站选取策略对精密定位精度影响形式与量级。分析可得:(1)利用我国CORS站作为基准站,相比于IGS为基准,不同时段坐标精度和基线长精度均有提高。(2)以板块区域进行基准站位置划分,对比发现,与测站在相同板块内的基准站的解算精度,优于测站与基准站位于不同二级板块的解算精度。The accuracy of high precision medium and long baseline static precision positioning is affected by many factors.Among them, plate motion and base station selection strategy have great influence on positioning accuracy.This paper used China’s neighboring IGS station and domestic CORS station network as the base station to quantitatively analyze the influence form and magnitude of different base station selection strategies on precision positioning accuracy.The analysis can be obtained:(1) Using China’s CORS station as the reference station, compared with IGS as the benchmark, the coordinate accuracy and block consistency are improved in different time periods.(2) The location of the base station is divided by the plate area.It was found that the accuracy of the calculation of the base station in the same plate as the station was better than that of the station and the base station in different secondary blocks.

关 键 词：基准站选站策略 CORS站网 块体运动 中长基线 定位精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]