Research on the eLoran Differential Timing Method

doi:10.3390/s20226518

NTSC-IR

	Research on the eLoran Differential Timing Method
	Li, Yun 1,2; Hua, Yu1 ; Yan, Baorong1 ; Guo, Wei1
	2020-11-01
发表期刊	SENSORS
卷号	20 期号:22 页码:14
摘要	An enhanced long-range navigation (eLoran) system was selected as the backup of Global Navigation Satellite Systems (GNSS), and experts and scholars are committed to improving the accuracy of the eLoran system such that its accuracy is close to the GNSS system. A differential method called eLoran differential timing technology is applied to the eLoran system, which has been used in maritime applications of eLoran. In this study, an application of eLoran differential timing technology in a terrestrial medium is carried out. Based on the eLoran timing service error, the correlation of the timing service error is analyzed in theory quantitatively to obtain the range of the difference station in the ground. The results show that to satisfy the timing accuracy of 100 ns, the action range of eLoran difference station on the land needs to be less than 55 km. Therefore, the eLoran differential method is proposed, and in the difference station, the theoretical calculation is combined with the measurement of the signal delay to obtain the difference information, which is sent to the users to adjust the prediction delay and improve the eLoran timing precision. The experiment was carried out in the Guan Zhong Plain, and the timing error of the user decreased from 394.7287 ns (pre-difference) to 19.5890 ns (post-difference). The proposed method is found to effectively enhance the timing precision of the eLoran system within the scope of action.
关键词	eLoran difference timing service error correlation
资助者	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
DOI	10.3390/s20226518
语种	英语
资助项目	Natural Science Foundation of China[11803040] ; Frontier Science of the Chinese Academy of Sciences[QYZDJ-SSW-JSC034]
资助者	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
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000594568200001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/12097
专题	中国科学院国家授时中心
通讯作者	Li, Yun
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Phys Dept, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Yun,Hua, Yu,Yan, Baorong,et al. Research on the eLoran Differential Timing Method[J]. SENSORS,2020,20(22):14.
APA	Li, Yun,Hua, Yu,Yan, Baorong,&Guo, Wei.(2020).Research on the eLoran Differential Timing Method.SENSORS,20(22),14.
MLA	Li, Yun,et al."Research on the eLoran Differential Timing Method".SENSORS 20.22(2020):14.