Velocity estimations by combining time-differenced GPS and Doppler observations
文献类型：期刊论文
| 作者 | Wang,Xingxing1,3; Tu,Rui1,2,3; Gao,Yaping4; Zhang,Rui1,2; Fan,Lihong1,2; Zhang,Pengfei1,3; Han,Junqiang1,2; Lu,Xiaochun1,2,3 |
| 刊名 | Measurement Science and Technology
 |
| 出版日期 | 2019-09-16 |
| 卷号 | 30期号:12 |
| 关键词 | velocity estimation Doppler observation GNSS time-differencing |
| ISSN号 | 0957-0233 |
| DOI | 10.1088/1361-6501/ab375f |
| 英文摘要 | Abstract Time-differenced carrier phase velocity estimations (TDCPVE) and Doppler velocity estimations (DVE) are two commonly used methods for precise velocity estimation with a stand-alone GPS receiver. As TDCPVE require a minimum of four satellites for parameter estimation, the time-differenced velocity estimation (TDVE) model was developed by combining the TDCPVE model and time-differenced pseudo-range velocity estimation model. A limitation of the TDVE is that it can show reduced solution availability, particularly during harsh conditions. DVE model theory is stricter than that of the TDVE model, which yields more reliability when vehicle maneuverability is strong. However, its accuracy is low due to the low precision of Doppler observations. Nevertheless, the advantages and disadvantages of the TDVE and DVE are complementary. This study presents a TD–DVE method by combining the two models. This method can achieve improved performance by fully using all useful information contained in the GPS and Doppler observations. Static and dynamic data were used to verify and analyze the performance of the TD–DVE. The results show that the accuracy of the TD–DVE was improved compared with the DVE. Compared with the TDVE method, TD–DVE has a much higher solution rate at poor observation conditions and improved accuracy during changing vehicle dynamic conditions. Overall, the TD–DVE model enhances the robustness of the individual velocity estimation methods and improves usability. |
| 语种 | 英语 |
| WOS记录号 | IOP:0957-0233-30-12-AB375F |
| 出版者 | IOP Publishing |
| 源URL | [http://210.72.145.45/handle/361003/10762]  |
| 专题 | 中国科学院国家授时中心 |
| 作者单位 | 1.National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi’an 710600, People’s Republic of China 2.Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences, Xi’an 710600, People’s Republic of China 3.University of Chinese Academy of Sciences, Yu Quan Road, Beijing 100049, People’s Republic of China 4.Chengdu University of Technology, Dong San Road of Er Xian Qiao, Cheng du 610059, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Wang,Xingxing,Tu,Rui,Gao,Yaping,et al. Velocity estimations by combining time-differenced GPS and Doppler observations[J]. Measurement Science and Technology,2019,30(12). |
| APA | Wang,Xingxing.,Tu,Rui.,Gao,Yaping.,Zhang,Rui.,Fan,Lihong.,...&Lu,Xiaochun.(2019).Velocity estimations by combining time-differenced GPS and Doppler observations.Measurement Science and Technology,30(12). |
| MLA | Wang,Xingxing,et al."Velocity estimations by combining time-differenced GPS and Doppler observations".Measurement Science and Technology 30.12(2019). |
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。