基于北斗三号新频点的多路径误差特性验证方法研究  

Research on Validation Method of Multipath Error Characteristics of BDS-3 New Frequencies

作　　者：戴凯阳 邵搏 熊帅[1] 张键 雷哲哲 DAI Kaiyang;SHAO Bo;XIONG Shuai;ZHANG Jian;LEI Zhezhe(The 20th Research Institute of CETC,Xi'an 710068,China)

机构地区：[1]中国电子科技集团公司第二十研究所,西安市710068

出　　处：《大地测量与地球动力学》2021年第9期934-938,共5页Journal of Geodesy and Geodynamics

基　　金：中国电子科技集团公司产业发展资金(20201121)。

摘　　要：提出一种北斗三号新频点多路径误差特性验证方法,并通过接收机天线群延时实验以及实测数据验证其与国际民航组织给出的多路径误差模型的符合性。结果表明:1)实验使用的接收机天线符合DO-373天线群延时特性要求;2)在B1c/L1、B2a/L5和双频组合情况下,BDS与GPS的多路径误差曲线的变化趋势基本一致,即BDS与GPS多路径误差特性基本一致;3)BDS在B1c、B2a以及双频组合情况下的多路径误差特性符合国际民航组织多路径误差模型要求。We provide a validation method of multipath model of BDS-3 new frequencies.We use antenna group delay test and measured data to verify the multipath error characteristics of BDS meet the requirements of DFMC multipath model.The results show that:1)The receving antenna used in the experiment meet the requirements of DO-373.2)In the case of B1c/L1,B2a/L5 and dual-frequency combination,the trend of multipath error curve of BDS and GPS are basically the same;that is,the characteristics of multipath error of BDS and GPS are basically the same.3)The multipath error characteristics of BDS in the case of B1c,B2a and dual-frequency combination can meet the requirements of the DFMC multipath model.

关 键 词：北斗系统 多路径误差模型 天线群延时 国际民航组织 双频多星座 

分 类 号：P228[天文地球—大地测量学与测量工程]