中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 国家授时中心
  3. 中国科学院国家授时中心
热门
BDS-3 Time Group Delay and Its Effect on Standard Point Positioning

文献类型：期刊论文

作者Dai, Peipei1,2,3; Ge, Yulong1,2,3; Qin, Weijin1; Yang, Xuhai1
刊名REMOTE SENSING
出版日期2019-08-01
卷号11期号:15页码:29
关键词BDS-3 BDS-2+BDS-3 time group delay standard point positioning
DOI10.3390/rs11151819
英文摘要The development of the BeiDou navigation system (BDS) is divided into three phases: The demonstration system (BDS-1), the regional system (BDS-2) and the global BeiDou navigation system (BDS-3). At present, the construction of the global BeiDou navigation system (BDS-3) constellation network is progressing very smoothly. The signal design and functionality of BDS-3 are different from those of BDS-1 and BDS-2. The BDS-3 satellite not only broadcasts B1I (1561.098 MHz) and B3I (1268.52 MHz) signals but also broadcasts new signals B1C (1575.42 MHz) and B2a (1176.45 MHz). In this work, six tracking stations of the international GNSS monitoring and assessment system (iGMAS) were selected, and 41 consecutive days of observation data, were collected. To fully exploit the code observations of BDS-2 and BDS-3, the time group delay (TGD) correction model of BDS-2 and BDS-3 are described in detail. To further verify the efficacy of the broadcast TGD parameters in the broadcast ephemeris, the standard point positioning (SPP) of all the signals from BDS-2 and BDS-3 with and without TGD correction was studied. The experiments showed that the B1I SPP accuracy of BDS-2 was increased by approximately 50% in both the horizontal and vertical components, and B1I/B3I were improved by approximately 70% in the horizontal component and 47.4% in the vertical component with TGD correction. The root mean square (RMS) value of B1I and B1C from BDS-3 with TGD correction was enhanced by approximately 60%-70% in the horizontal component and by approximately 50% in the vertical component. The B2a-based SPP was increased by 60.2% and 64.4% in the east and north components, respectively, and the up component was increased by approximately 19.8%. For the B1I/B3I and B1C/B2a dual-frequency positioning accuracy with TGD correction, the improvement in the horizontal component ranges from 62.1% to 75.0%, and the vertical component was improved by approximately 45%. Furthermore, the positioning accuracy of the BDS-2 + BDS-3 combination constellation was obviously higher than that of BDS-2 or BDS-3.
WOS关键词ORBIT
资助项目National Natural Science Foundation of China[11703033] ; Natural Science Foundation of Shaanxi[2018JQ1020] ; Youth promotion committee of Chinese Academy of Sciences ; iGMAS
WOS研究方向Remote Sensing
语种英语
出版者MDPI
WOS记录号WOS:000482442800083
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi ; Natural Science Foundation of Shaanxi ; Youth promotion committee of Chinese Academy of Sciences ; Youth promotion committee of Chinese Academy of Sciences ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi ; Natural Science Foundation of Shaanxi ; Youth promotion committee of Chinese Academy of Sciences ; Youth promotion committee of Chinese Academy of Sciences ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi ; Natural Science Foundation of Shaanxi ; Youth promotion committee of Chinese Academy of Sciences ; Youth promotion committee of Chinese Academy of Sciences ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi ; Natural Science Foundation of Shaanxi ; Youth promotion committee of Chinese Academy of Sciences ; Youth promotion committee of Chinese Academy of Sciences ; iGMAS ; iGMAS
源URL[http://210.72.145.45/handle/361003/11995]  
专题中国科学院国家授时中心
通讯作者Ge, Yulong
作者单位1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Precise Positioning & Timing Technol, Xian 710600, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Dai, Peipei,Ge, Yulong,Qin, Weijin,et al. BDS-3 Time Group Delay and Its Effect on Standard Point Positioning[J]. REMOTE SENSING,2019,11(15):29.
APA Dai, Peipei,Ge, Yulong,Qin, Weijin,&Yang, Xuhai.(2019).BDS-3 Time Group Delay and Its Effect on Standard Point Positioning.REMOTE SENSING,11(15),29.
MLA Dai, Peipei,et al."BDS-3 Time Group Delay and Its Effect on Standard Point Positioning".REMOTE SENSING 11.15(2019):29.

入库方式： OAI收割

来源：国家授时中心

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。