BDS-3基本系统载波相位平滑伪距分析  

Analysis of carrier phase smoothing pseudorange of BDS-3 preliminary system

作　　者：徐宗秋[1] 韩澎涛 赵洪涛[3] 丁新展 庄典 徐彦田[4] XU Zongqiu;HAN Pengtao;ZHAO Hongtao;DING Xinzhan;ZHUANG Dian;XU Yantian(School of Geomatics,Liaoning Technical University,Fuxin,Liaoning 123000,China;School of Civil Engineering,Taishan Institute of Technology,Shandong University of Science and Technology,Tai'an,Shandong 271000,China;Liaoning Geology Engineering Vocational College,Dandong,Liaoning 118302,China;Chinese Academy of Surveying and 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]山东科技大学泰山科技学院建筑工程学院,山东泰安271000 [3]辽宁地质工程职业学院,辽宁丹东118302 [4]中国测绘科学研究院,北京100036

出　　处：《测绘科学》2020年第12期62-68,共7页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41504030,41504010,41904037)。

摘　　要：为分析BDS-3基本系统载波相位平滑伪距单点定位性能,采用B1、B3单频以及B1/B3无电离层组合(B1/B3IF)3种模式,分别进行标准伪距单点定位和载波相位平滑伪距单点定位实验。对国际GNSS服务(IGS)测站数据进行处理,结果表明,载波相位平滑伪距可提高定位结果的稳定性;B1、B3和B1/B3IF 3种模式平滑后3D定位精度分别提高了0.08、0.04和0.93 m;平滑后B1/B3IF模式高程定位精度较B1和B3模式分别高0.99和2.38 m,表明BDS-3基本系统电离层延迟改正模型有一定优化空间。将载波相位平滑伪距应用于手机端定位,平滑后重复性定位精度和定位精度分别提高了39.7%和6%。In order to analyze the single-point positioning performance of the carrier phase smoothing pseudo-range of the BDS-3 preliminary system,three modes of B1,B3 single frequency and B1/B3 ionosphere-free combination(B1/B3_IF)were used to perform standard pseudo-range single-point positioning and carrier phase-smoothing pseudo-range single-point positioning experiment,respectively.Processing the International GNSS Service(IGS)station data,the results showed that the carrier phase smoothing pseudo-range could improve the stability of the positioning results;after smoothing the three modes of B1,B3 and B1/B3_IF,the 3D positioning accuracy was improved by 0.08,0.04 and 0.93 m;after smoothing,the positioning accuracy of the B1/B3_IF mode elevation was 0.99 and 2.38 m higher than that of the B1 and B3 modes,respectively,indicating that there was room for optimization of the ionospheric delay correction model of the BDS-3 preliminary system.The carrier phase smoothing pseudo-range was applied to the positioning of the mobile phone end,and the repeatable positioning accuracy and positioning accuracy after smoothing were improved by 39.7%and 6%,respectively.

关 键 词：BDS-3基本系统 载波相位平滑伪距 单频 B1/B3无电离层组合 定位性能 

分 类 号：P228.4[天文地球—大地测量学与测量工程]