BDS-3基本系统的动态单点定位性能评估  

Kinematic single point positioning performance evaluation of BDS-3 preliminary system

作　　者：徐宗秋[1] 庄典 杨瑞雪 徐彦田[2] 唐龙江[1] 丁新展 韩澎涛 XU Zongqiu;ZHUANG Dian;YANG Ruixue;XU Yantian;TANG Longjiang;DING Xinzhan;HAN Pengtao(School of Geomatics,Liaoning Technical University,Fuxin,Liaoning 123000,China;Chinese Academy of Surveying&.Mapping,Beijing 100036,China)

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000 [2]中国测绘科学研究院,北京100036

出　　处：《测绘科学》2020年第6期46-50,共5页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41504030)。

摘　　要：为了评估BDS-3基本系统的动态单点定位性能,该文分别采用标准单点定位(SPP)和精密单点定位(PPP)法处理了2019年WUH2站第29~33 d共5 d的观测数据,将测站坐标作为白噪声参数模拟动态单点定位。结果表明,BDS-3基本系统较BDS-2系统增加了可用卫星数,明显增强了卫星几何构型;较BDS-2系统SPP分别提高了27.1%和31.2%;较BDS-2系统动态PPP分别提高了26.5%和38.3%。因此,BDS-3基本系统动态单点定位性能明显优于BDS-2系统。研究成果可为及时获得BDS-3基本系统定位性能提供参考。In order to evaluate the kinematic single point positioning performance of the BDS 3 preliminary system,the static observation data of the WUH2 station from Day 29 to 33 in 2019 was processed by standard point positioning(SPP)and precise single point positioning(PPP)method.The station coordinates were used as white noise parameters to simulate kinematic single point positioning.The results showed that comparing to the BDS 2 system,the BDS 3 preliminary system increased the number of available satellites,which significantly enhanced the satellite geometry;which wa's 27.1%and 31.2%higher than that of the BDS-2 system;which was 26.5%and 38.3%higher than that of the BDS2 system.Therefore,the BDS 3 preliminary system kinematic single point positioning performance was significantly better than the BDS-2 system.The research results could provide reference for timely obtaining the positioning performance of BDS 3 preliminary system.

关 键 词：北斗3号基本系统 北斗2号系统 动态 标准单点定位 精密单点定位 

分 类 号：P228.4[天文地球—大地测量学与测量工程]