High-Accuracy Positioning Based on Pseudo-Ranges: Integrated Difference and Performance Analysis of the Loran System
文献类型：期刊论文
| 作者 | Yan, Baorong ; Li, Yun; Guo, Wei; Hua, Yu
|
| 刊名 | SENSORS
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 20期号:16页码:15 |
| 关键词 | Loran position geometrical dilution of precision accuracy difference method |
| DOI | 10.3390/s20164436 |
| 英文摘要 | The Long Range Navigation (Loran) system as a backup of the Global Navigation Satellite System (GNSS) is a good choice. The dominant deterioration factors of position accuracy are the pseudo-range measurement errors and the geometric dilution of precision (GDOP). This paper focuses on the algorithm integrated difference with pseudo-ranges to improve the position accuracy. Firstly, the theoretical prediction of propagation delay and raw measurement are compared. The results show that the measured pseudo-range consists of a constant term and a temporal term, which reflect the propagation situation along the true path. Secondly, a position solution algorithm based on a pseudo-range and difference is presented, exceeding the limit of a single chain. Finally, some simulation tests are implemented utilizing the new proposed position algorithm to verify the differential performance. This method can reduce the GDOP conveniently through increasing the number of transmitters. In view of the amplitude and characteristics of errors in measurement, systematic error and random noise are distinguished and discussed. The absolute accuracy responds to the pseudo-range bias that is different from geometric distance and repeatable accuracy is mainly influenced by random noise. The difference method can improve the absolute accuracy via the correction degree without changing the geometry of the transmitters. |
| WOS关键词 | NAVIGATION |
| 资助项目 | Natural Science Foundation of China[11803040] ; Frontier Science of the Chinese Academy of Sciences[QYZDJ-SSW-JSC034] |
| WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000564857300001 |
| 出版者 | MDPI |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of China ; Frontier Science of the Chinese Academy of Sciences ; Frontier Science of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Frontier Science of the Chinese Academy of Sciences ; Frontier Science of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Frontier Science of the Chinese Academy of Sciences ; Frontier Science of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Frontier Science of the Chinese Academy of Sciences ; Frontier Science of the Chinese Academy of Sciences |
| 源URL | [http://210.72.145.45/handle/361003/9386]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Yan, Baorong |
| 作者单位 | Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Baorong,Li, Yun,Guo, Wei,et al. High-Accuracy Positioning Based on Pseudo-Ranges: Integrated Difference and Performance Analysis of the Loran System[J]. SENSORS,2020,20(16):15. |
| APA | Yan, Baorong,Li, Yun,Guo, Wei,&Hua, Yu.(2020).High-Accuracy Positioning Based on Pseudo-Ranges: Integrated Difference and Performance Analysis of the Loran System.SENSORS,20(16),15. |
| MLA | Yan, Baorong,et al."High-Accuracy Positioning Based on Pseudo-Ranges: Integrated Difference and Performance Analysis of the Loran System".SENSORS 20.16(2020):15. |
入库方式： OAI收割
来源：国家授时中心
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