BDS+GPS相对定位精度因子分析

doi:10.11947/j.AGCS.2017.20160227

测绘学报 ›› 2017, Vol. 46 ›› Issue (3): 325-331.doi: 10.11947/j.AGCS.2017.20160227

BDS+GPS相对定位精度因子分析

严丽¹, 李萌²

1. 西南交通大学地球科学与环境工程学院, 四川成都 610031;
2. 成都理工大学地球科学学院, 四川成都 610051

收稿日期:2016-05-17 修回日期:2016-11-17 出版日期:2017-03-20 发布日期:2017-04-11
通讯作者: 李萌 E-mail:nemon818@163.com
作者简介:严丽(1988-),女,博士生,研究方向为高精度GNSS数据处理。E-mail:342384002@qq.com
基金资助:
四川省国土资源厅科研项目（KJ-2016-15）

Analysis of BDS+GPS Relative Positioning Dilution of Precision

YAN Li¹, LI Meng²

1. Faculty of Geosciences and Environment Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2. College of Earth Science, Chengdu University of Technology, Chengdu 610051, China

Received:2016-05-17 Revised:2016-11-17 Online:2017-03-20 Published:2017-04-11
Supported by:
The Science and Technology Program of Land and Resource Department of Sichuan Province (No.KJ-2016-15)

摘要/Abstract

摘要： 提出了GNSS相对定位大气精度因子，即对流层精度因子TrDOP和电离层精度因子IDOP，能够更全面地评估中长距离相对定位参数估计精度。首次从精度因子的角度论证了BDS与GPS融合对测量时间效率的影响。BDS/GPS系统融合后，模糊度精度因子ADOP、相对几何位置精度因子RGDOP、TrDOP值减小，达到与延长观测时间一致的效果。通过TrDOP和IDOP值分析，表明BDS/GPS系统融合有利于对流层和对流层参数估计。

关键词: BDS, GPS, ADOP, RGDOP, TrDOP, IDOP

Abstract: This paper defines new atmosphere DOP styles that are TrDOP and IDOP in GNSS relative positioning. From DOP standpoint, it is firstly demonstrated that the efficiency of BDS/GPS fusion precise relative positioning are improved. With the joining of BDS, the values of ADOP, RGDOP and TrDOP decrease efficiently that can be achieved by increasing observing sessions. Moreover, by analyzing TrDOP and IDOP values, it indicates that BDS/GPS fusion is favorable to estimate the tropospheric parameter and has a small impact on estimating ionospheric parameters.

Key words: BDS, GPS, ADOP, RGDOP, TrDOP, IDOP

中图分类号:

P228

严丽, 李萌. BDS+GPS相对定位精度因子分析[J]. 测绘学报, 2017, 46(3): 325-331.

YAN Li, LI Meng. Analysis of BDS+GPS Relative Positioning Dilution of Precision[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(3): 325-331.

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BDS+GPS相对定位精度因子分析

Analysis of BDS+GPS Relative Positioning Dilution of Precision

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