Positioning accuracy assessment for the 4GEO/5IGSO/2MEO constellation of COMPASS
文献类型：期刊论文
| 作者 | Zhou ShanShi1 ; Cao YueLing1; Zhou JianHua2; Hu XiaoGong1; Tang ChengPan1; Liu Li2; Guo Rui2; He Feng2; Chen JunPing1; Wu Bin1
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2012-12-01 |
| 卷号 | 55期号:12页码:2290-2299 |
| 关键词 | PPP real-time positioning authorized services orbit determination |
| 英文摘要 | Determined to become a new member of the well-established GNSS family, COMPASS (or BeiDou-2) is developing its capabilities to provide high accuracy positioning services. Two positioning modes are investigated in this study to assess the positioning accuracy of COMPASS' 4GEO/5IGSO/2MEO constellation. Precise Point Positioning (PPP) for geodetic users and real-time positioning for common navigation users are utilized. To evaluate PPP accuracy, coordinate time series repeatability and discrepancies with GPS' precise positioning are computed. Experiments show that COMPASS PPP repeatability for the east, north and up components of a receiver within mainland China is better than 2 cm, 2 cm and 5 cm, respectively. Apparent systematic offsets of several centimeters exist between COMPASS precise positioning and GPS precise positioning, indicating errors remaining in the treatments of COMPASS measurement and dynamic models and reference frame differences existing between two systems. For common positioning users, COMPASS provides both open and authorized services with rapid differential corrections and integrity information available to authorized users. Our assessment shows that in open service positioning accuracy of dual-frequency and single-frequency users is about 5 m and 6 m (RMS), respectively, which may be improved to about 3 m and 4 m (RMS) with the addition of differential corrections. Less accurate Signal In Space User Ranging Error (SIS URE) and Geometric Dilution of Precision (GDOP) contribute to the relatively inferior accuracy of COMPASS as compared to GPS. Since the deployment of the remaining 1 GEO and 2 MEO is not able to significantly improve GDOP, the performance gap could only be overcome either by the use of differential corrections or improvement of the SIS URE, or both. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000312436000010 |
| 源URL | [http://119.78.226.72/handle/331011/18145]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Beijing Global Informat Applicat & Dev Ctr, Beijing 100094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou ShanShi,Cao YueLing,Zhou JianHua,et al. Positioning accuracy assessment for the 4GEO/5IGSO/2MEO constellation of COMPASS[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(12):2290-2299. |
| APA | Zhou ShanShi.,Cao YueLing.,Zhou JianHua.,Hu XiaoGong.,Tang ChengPan.,...&Wu Bin.(2012).Positioning accuracy assessment for the 4GEO/5IGSO/2MEO constellation of COMPASS.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(12),2290-2299. |
| MLA | Zhou ShanShi,et al."Positioning accuracy assessment for the 4GEO/5IGSO/2MEO constellation of COMPASS".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.12(2012):2290-2299. |
入库方式： OAI收割
来源：上海天文台
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。