BeiDou Code Pseudorange Precision Estimation and Time Correlation Analysis from Trimble Net-R9 and ComNav 708 Receivers
文献类型：期刊论文
| 作者 | Hu, Hong4,5; Jin, Shuanggen2,3; Kang, Ruihong5; Cao, Xinyun1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 10期号:7 |
| 关键词 | Bds Stochastic Model Precise Positioning Code Pseudorange Time Correlation |
| ISSN号 | 2072-4292 |
| DOI | 10.3390/rs10071083 |
| 英文摘要 | Stochastic models describe the observation precisions and their correlations with each other and play an important role in reliable global navigation satellite system ambiguity resolution and precise positioning. However, the characteristics of BeiDou Navigation Satellite System (BDS) observations are still not clear at present. In general, the stochastic model used for BDS is based on empirical models from global positioning system (GPS) knowledge in most cases. In this paper, the zero-baseline dual-frequency GPS and BDS data with different sampling intervals are used to evaluate the precision and time correlation of the BDS code pseudorange observations. The results show that the precisions of BDS and GPS code measurements are almost of the same magnitude. However, the standard deviations of BDS measurements are larger than those of GPS measurements. Inclined geostationary orbit observations suffer from periodic error, which has been confirmed to be unaffected by multipath error in this paper. Traditional elevation-dependent models cannot work well for precise positioning for either GPS or BDS because the elevation dependencies of the two carrier frequencies' pseudorange observations are not the same. Moreover, BDS observations have a significant time correlation, especially for geostationary orbit satellites. The time correlation coefficients are maintained at similar to 0.63-0.75 for different receiver types. Consequently, the BDS positioning residuals are significantly larger than those of GPS even if the observations have similar precision. |
| WOS研究方向 | Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000440332500106 |
| 出版者 | MDPI |
| 源URL | [http://119.78.226.72/handle/331011/32263]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Hu, Hong |
| 作者单位 | 1.Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Hubei, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Jiangsu, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Min Environm Restorat & Wetland Ecol Secur Collab, Hefei 230601, Anhui, Peoples R China 5.Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Hong,Jin, Shuanggen,Kang, Ruihong,et al. BeiDou Code Pseudorange Precision Estimation and Time Correlation Analysis from Trimble Net-R9 and ComNav 708 Receivers[J]. REMOTE SENSING,2018,10(7). |
| APA | Hu, Hong,Jin, Shuanggen,Kang, Ruihong,&Cao, Xinyun.(2018).BeiDou Code Pseudorange Precision Estimation and Time Correlation Analysis from Trimble Net-R9 and ComNav 708 Receivers.REMOTE SENSING,10(7). |
| MLA | Hu, Hong,et al."BeiDou Code Pseudorange Precision Estimation and Time Correlation Analysis from Trimble Net-R9 and ComNav 708 Receivers".REMOTE SENSING 10.7(2018). |
入库方式： OAI收割
来源：上海天文台
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