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BDS-3多频伪距定位性能分析

刘明亮,  安家春,  王泽民,  张保军,  宋翔宇

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刘明亮, 安家春, 王泽民, 张保军, 宋翔宇. BDS-3多频伪距定位性能分析[J]. 武汉大学学报 ● 信息科学版. doi: 10.13203/j.whugis20200714
引用本文: 刘明亮, 安家春, 王泽民, 张保军, 宋翔宇. BDS-3多频伪距定位性能分析[J]. 武汉大学学报 ● 信息科学版. doi: 10.13203/j.whugis20200714
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LIU Mingliang, AN Jiachun, WANG Zemin, ZHANG Baojun, SONG Xiangyu. Performance Analysis of BDS-3 Multi-frequency Pseudorange Positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20200714
Citation: LIU Mingliang, AN Jiachun, WANG Zemin, ZHANG Baojun, SONG Xiangyu. Performance Analysis of BDS-3 Multi-frequency Pseudorange Positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20200714
shu

BDS-3多频伪距定位性能分析

doi: 10.13203/j.whugis20200714

  • 1 武汉大学中国南极测绘研究中心, 武汉 430079;

  • 2 石家庄铁道大学土木工程学院, 河北 石家庄, 050043;

  • 3 道路与铁道工程安全保障省部共建教育部重点实验室(石家庄铁道大学), 河北 石家庄, 050043

基金项目: 

国家自然科学基金（41941010，41776195）；国家海洋局极地考察办公室极地科学协同创新平台项目（CXPT2020007）。

详细信息
    作者简介:

    刘明亮,博士生,主要从事高精度GNSS定位、极地冰雪监测研究。liuming_liang@163.com*

  • 中图分类号: P228

Performance Analysis of BDS-3 Multi-frequency Pseudorange Positioning

  • 1 Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China;

  • 2 School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;

  • 3 Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Ministry of Education, Shijiazhuang 050043, China

Funds: 

The National Natural Science Foundation of China (41941010, 41776195)

  • 摘要: BDS-3于2020年7月31日正式开通全球服务，为详细评估BDS-3全球定位性能，以全球16个MGEX跟踪站多天实测数据为基础。采用Net_Diff软件进行了全球范围内BDS-3单频、双频无电离层组合与双频非组合模型下双频、三频非组合模型和三频无电离层两两组合模型三频伪距单点定位解算试验，并与GPS、Galileo部分频率进行对比。试验结果表明，在亚欧非地区BDS-3卫星数与空间几何构型优于GPS和Galileo，对于BDS-3单频伪距单点定位，B1C、B1I、B2a、B3I四个频率E方向精度优于0.5 m，N方向精度优于1 m，U方向精度优于2 m，与GPS和Galileo对比定位精度关系为： B1C>B1I>L1>B3I> B2a> E1>L2>E5a。对于BDS-3双频组合伪距单点定位，B2aB3I组合定位较差，不适合进行定位，B1CB2a、B1CB3I、B1IB2a、B1IB3I组合频率E方向和N方向定位精度优于1 m，U方向定位精度优于2 m，与GPS和Galileo对比定位精度关系为：B1CB2a>B1CB3I> L1L2> B1IB3I> B1IB2a> E1E5a> B2aB3I。对于BDS-3三频组合伪距单点定位，B1IB2aB3I、B1CB2aB3I组合E方向和N方向定位精度优于1 m，U方向定位精度优于2 m，与GPS和Galileo对比定位精度关系为： B1CB2aB3I> B1IB2aB3I> L1L2L2> E1E5aE5b。B1CB3I、B1IB3I、B1CB2a、B1IB2a双频组合适合利用非组合模型进行定位，B2aB3I适合利用无电离层模型进行定位，B1IB2aB3I和B1CB2aB3I适合利用非组合模型定位。结合实验结果可知，BDS-3在全球范围内定位性能较优，甚至部分频率定位性能优于GPS和Galileo，可为今后BDS-3相关研究提供一定参考。
    Abstract: Objectives: BDS-3 officially opened its global service on July 31, 2020. To evaluate the BDS-3 global positioning performance in detail. Based on multi-day measured data from 16 MGEX tracking stations around the world. Methods: Net_Diff software was used to carry out the global BDS-3 single-frequency, dual-frequency non-ionospheric combination and dual-frequency non-combination model under dual-frequency, three-frequency non-combination model and three-frequency non-ionospheric pairwise combination model, three-frequency pseudorange single Point positioning solution experiment. And compare with GPS, Galileo some frequencies. Results: The results show that the number of satellites and spatial geometry of BDS-3 in Asia, Europe and Africa are better than GPS and Galileo. For BDS-3 single-frequency pseudo-range single-point positioning, the four frequencies of B1C, B1I, B2a, and B3I have four frequencies of E direction accuracy. It is better than 0.5 m, the accuracy of the N direction is better than 1 m, and the accuracy of the U direction is better than 2 m. Compared with GPS and Galileo, the positioning accuracy relationship is:B1C>B1I>L1>B3I>B2a>E1>L2>E5a. For BDS-3 dual-frequency combined pseudorange single-point positioning, the B2aB3I combined positioning is poor and not suitable for positioning. The B1CB2a, B1CB3I, B1IB2a, B1IB3I combined frequency positioning accuracy in the E and N directions is better than 1m, and the positioning accuracy in the U direction is better 2 m, compared with GPS and Galileo, the positioning accuracy relationship is:B1CB2a> B1CB3I> L1L2> B1IB3I> B1IB2a> E1E5a> B2aB3I. For BDS-3 triple-frequency combined pseudo-range single-point positioning, the positioning accuracy of B1IB2aB3I and B1CB2aB3I in the E and N directions is better than 1 m, and the positioning accuracy in the U direction is better than 2 m. Compared with GPS and Galileo, the positioning accuracy relationship is:B1CB2aB3I> B1IB2aB3I> L1L2L2> E1E5aE5b. B1CB3I, B1IB3I, B1CB2a, B1IB2a dual-frequency combinations are suitable for positioning using non-combined models, B2aB3I is suitable for positioning using non-ionospheric models, and B1IB2aB3I and B1CB2aB3I are suitable for positioning using non-combined models. Conclusions: Combining the experimental results can draw conclusions, BDS-3 has better positioning performance on a global scale. Even some frequency positioning performance is better than GPS and Galileo, which can provide a certain reference for future BDS-3 related research.
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出版历程

BDS-3多频伪距定位性能分析

doi: 10.13203/j.whugis20200714
  • 1 武汉大学中国南极测绘研究中心, 武汉 430079;
  • 2 石家庄铁道大学土木工程学院, 河北 石家庄, 050043;
  • 3 道路与铁道工程安全保障省部共建教育部重点实验室(石家庄铁道大学), 河北 石家庄, 050043
    • 基金项目:

    国家自然科学基金（41941010，41776195）；国家海洋局极地考察办公室极地科学协同创新平台项目（CXPT2020007）。

    作者简介:

    刘明亮,博士生,主要从事高精度GNSS定位、极地冰雪监测研究。liuming_liang@163.com*

  • 中图分类号: P228

摘要: BDS-3于2020年7月31日正式开通全球服务，为详细评估BDS-3全球定位性能，以全球16个MGEX跟踪站多天实测数据为基础。采用Net_Diff软件进行了全球范围内BDS-3单频、双频无电离层组合与双频非组合模型下双频、三频非组合模型和三频无电离层两两组合模型三频伪距单点定位解算试验，并与GPS、Galileo部分频率进行对比。试验结果表明，在亚欧非地区BDS-3卫星数与空间几何构型优于GPS和Galileo，对于BDS-3单频伪距单点定位，B1C、B1I、B2a、B3I四个频率E方向精度优于0.5 m，N方向精度优于1 m，U方向精度优于2 m，与GPS和Galileo对比定位精度关系为： B1C>B1I>L1>B3I> B2a> E1>L2>E5a。对于BDS-3双频组合伪距单点定位，B2aB3I组合定位较差，不适合进行定位，B1CB2a、B1CB3I、B1IB2a、B1IB3I组合频率E方向和N方向定位精度优于1 m，U方向定位精度优于2 m，与GPS和Galileo对比定位精度关系为：B1CB2a>B1CB3I> L1L2> B1IB3I> B1IB2a> E1E5a> B2aB3I。对于BDS-3三频组合伪距单点定位，B1IB2aB3I、B1CB2aB3I组合E方向和N方向定位精度优于1 m，U方向定位精度优于2 m，与GPS和Galileo对比定位精度关系为： B1CB2aB3I> B1IB2aB3I> L1L2L2> E1E5aE5b。B1CB3I、B1IB3I、B1CB2a、B1IB2a双频组合适合利用非组合模型进行定位，B2aB3I适合利用无电离层模型进行定位，B1IB2aB3I和B1CB2aB3I适合利用非组合模型定位。结合实验结果可知，BDS-3在全球范围内定位性能较优，甚至部分频率定位性能优于GPS和Galileo，可为今后BDS-3相关研究提供一定参考。

English Abstract

刘明亮, 安家春, 王泽民, 张保军, 宋翔宇. BDS-3多频伪距定位性能分析[J]. 武汉大学学报 ● 信息科学版. doi: 10.13203/j.whugis20200714
引用本文: 刘明亮, 安家春, 王泽民, 张保军, 宋翔宇. BDS-3多频伪距定位性能分析[J]. 武汉大学学报 ● 信息科学版. doi: 10.13203/j.whugis20200714
shu
LIU Mingliang, AN Jiachun, WANG Zemin, ZHANG Baojun, SONG Xiangyu. Performance Analysis of BDS-3 Multi-frequency Pseudorange Positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20200714
Citation: LIU Mingliang, AN Jiachun, WANG Zemin, ZHANG Baojun, SONG Xiangyu. Performance Analysis of BDS-3 Multi-frequency Pseudorange Positioning[J]. Geomatics and Information Science of Wuhan University. doi: 10.13203/j.whugis20200714
shu

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