测绘通报 ›› 2018, Vol. 0 ›› Issue (12): 83-86.doi: 10.13474/j.cnki.11-2246.2018.0389

• 技术交流 • 上一篇    下一篇

BDS/GPS格网虚拟化伪距差分和伪距改正数差分的差异化实现

张晶晶1, 陈现春1, 秘金钟2, 方书山2, 成兵1   

  1. 1. 四川省第一测绘工程院, 四川 成都 610100;
    2. 中国测绘科学研究院, 北京 100086
  • 收稿日期:2018-03-30 修回日期:2018-08-21 出版日期:2018-12-25 发布日期:2019-01-03
  • 作者简介:张晶晶(1989-),女,硕士生,主要从事网络RTK/RTD实时动态定位及大众位置服务研究。E-mail:casmzjj@126.com
  • 基金资助:
    国家测绘地理信息局面向新型基础测绘的地理信息更新与监测技术研发(2018KJ0200;2018KJ0205);成都市科技局创新驱动项目西部地理信息产业园建设(2015-CX00-00011-ZF);四川省测绘地理信息局科技支撑项目(J2017ZC01)

Realization of BDS/GPS Grid Virtual Pseudorange Differential Positioning and Pseudorange Correction Differential Positioning

ZHANG Jingjing1, CHEN Xianchun1, BI Jinzhong2, FANG Shushan2, CHENG Bing1   

  1. 1. Sichuan First Institute of Surveying and Mapping Engineering, Chengdu 610100, China;
    2. Chinese Academy of Surverying and Mapping, Beijing 100086, China
  • Received:2018-03-30 Revised:2018-08-21 Online:2018-12-25 Published:2019-01-03

摘要: 为了解决大规模基准站为海量用户提供网络RTD服务,且保证基准站坐标及数据安全的难题,本文基于格网虚拟化差分服务模式,研究并实现了BDS/GPS RTCM3.2格网虚拟化伪距差分服务技术,研发了同时具备RTCM2.3伪距改正数差分服务和RTCM3.2伪距差分服务的差分服务系统,形成了完善的、面向大众的网络RTD服务系统。系统提供的2种差异化差分服务均已在四川省北斗地基增强系统中进行验证,经测试,格网虚拟化差分服务的方法切实可行,可保障基准站信息的安全,并且可较传统差分服务模式提高25%的并发用户量,可广泛应用于各省市、各区域的CORS网络RTD服务中。

关键词: 格网虚拟化伪距差分, 格网虚拟化伪距改正数差分, RTCM2.3, RTCM3.2, BDS/GPS CORS

Abstract: In order to solve the problem that large-scale reference stations provide network RTD services for mass users and guarantee the security of base station coordinates and data, this paper studies and implements BeiDou/GPS RTCM3.2 pseudorange differential services based on the grid virtualization differentiated service model. Compared with RTCM2.3 pseudorange correction difference service, this paper implements two kinds of differentiated services to form a complete network RTD data source service. Both types of services have been validated in the Sichuan Provincial BDS CORS. After testing, the grid virtual differential positioning services approach is feasible and can guarantee the security of the base station information. Also,this approach can increase the number of concurrent users by 50%. This approach can be used in provincial and regional CORS network RTD service.

Key words: grid virtual pseudorange differential positioning, grid virtual pseudorange correction differential positioning, RTCM2.3, RTCM3.2, BDS/GPS CORS

中图分类号: