PPP-B2b服务的实时精密单点定位精度分析  

Real-time precise point positioning precision analysis based on PPP-B2b service

作　　者：肖浩威 王江林 郭海荣 杨立扬 XIAO Haowei;WANG Jianglin;GUO Hairong;YANG Liyang(Guangzhou South Surveying&Mapping Technology Co.,Ltd.,Guangzhou 510520,China;Beijing Satellite Navigation Center,Beijing 100094,China)

机构地区：[1]广州南方测绘科技股份有限公司,广东广州510520 [2]北京卫星导航中心,北京100094

出　　处：《测绘通报》2022年第4期117-121,共5页Bulletin of Surveying and Mapping

基　　金：青年科学基金项目(41804033)。

摘　　要：基于北斗官方发布的承载精密单点定位(PPP)服务的PPP-B2b信号与南方测绘最新研发高精度定位终端,本文采用全国6个城市连续一周的观测数据和实时定位结果,分析了基于PPP-B2b服务的PPP精度。其中重点分析了实时静态PPP与实时动态PPP定位的精度。试验结果如下:基于PPP-B2b服务的静态PPP定位精度水平方向优于7 cm,高程方向优于10 cm;基于PPP-B2b服务的动态PPP定位精度水平方向优于10 cm,高程方向优于15 cm。试验结果表明,基于该服务的实时PPP能达到静态厘米级、动态分米级的定位精度。Based on the officially released PPP-B2 b signal by BeiDou,which carries the precise point positioning(PPP),and the latest high-precision positioning terminal developed by South Surveying&Mapping Technology Co.,Ltd.(SOUTH),this article utilizes observation data and real-time positioning results of 6 cities across the country for a week to analyzes the accuracy of the PPP results based on PPP-B2 b service.In this paper,the focus is on analyzing the accuracy of real-time static PPP and real-time dynamic PPP positioning.Experimental results show that the static PPP positioning accuracy based on the PPP-B2 b service is better than 7 cm in the horizontal direction,and better than 10 cm in the vertical direction;the dynamic PPP positioning accuracy based on the PPP-B2 b service is better than 10 cm in the horizontal direction,and better than 15 cm in the vertical direction.A conclusion can be made that the precise point positioning based on PPP-B2 b service can reach centimeter level in static mode and decimeter level in dynamic mode.

关 键 词：北斗卫星导航系统 PPP-B2b 实时精密单点定位 静/动态定位精度分析 

分 类 号：P228[天文地球—大地测量学与测量工程]