摘要
针对普通用户终端定位精度无法满足特定场景的精度需求,基于局域CORS网并融合数据,生成位置改正数以修正终端位置,提高公众定位精度。经过开发服务端与终端软件进行大量测试,分析了格网生成配置的最优方案,并且进行虚拟格网实时位置差分外符合性测试。试验证明,虚拟格网位置差分能够提高普通终端定位精度,能够为公众提供平面RMS小于3 m的位置服务。
General user terminal positioning accuracy can not meet the accuracy requirements of specific scenes.Based on the local CORS network and fusion data,this paper generates position corrections to correct the terminal position.After extensive testing of the development server and terminal software,the optimal scheme of grid generation and configuration is analyzed,and the real-time position differential external conformance test of virtual grid is performed.Experiments show that the virtual grid location difference can improve the accuracy of ordinary terminal positioning,and can provide the public with a plane RMS less than 3 m location service.
作者
刘一
谷守周
秘金钟
余梦洋
张涛
楚彬
LIU Yi;GU Shouzhou;BEI Jinzhong;YU Mengyang;ZHANG Tao;CHU Bin(Shandong University of Science and Technology,Qingdao 266590,China;Chinese Academic of Surveying and Mapping,Beijing 100830,China;The First Geodetic Surveying Brigade of NASG,Xi'an 710054,China;Hunan Institute of Surveying and Mapping,Changsha 410000,China)
出处
《测绘通报》
CSCD
北大核心
2019年第1期13-17,共5页
Bulletin of Surveying and Mapping
基金
国家自然科学基金(41304030)
国家重点研发计划(2016YFB0501801
2016YFB0501405
2016YFB0502105
2016YFB0502101)
全球连续监测评估系统项目(CFZX0301040308-06)
国家基础测绘科技项目(2017KJ0205)
中国测绘科学研究院基本科研业务费(7771730
7771604)
湖南省国土资源厅科技研究计划(2016-07
2017-13
2017-20)
长沙市科技局科技研究计划(KQ1701171)
