Variation of Low-Frequency Time-Code Signal Field Strength during the Annular Solar Eclipse on 21 June 2020: Observation and Analysis

doi:10.3390/s21041216

NTSC-IR

	Variation of Low-Frequency Time-Code Signal Field Strength during the Annular Solar Eclipse on 21 June 2020: Observation and Analysis
	Wang, Xin 1,2,3; Li, Bo 1; Zhao, Fan 1,2,3; Luo, Xinyu 1,2,3; Huang, Luxi 1,2,3; Feng, Ping 1,2,3; Li, Xiaohui 1,2,3
	2021-02-01
发表期刊	SENSORS
卷号	21 期号:4 页码:18
摘要	Due to the occlusion of the moon, an annular solar eclipse will have an effect on the ionosphere above the earth. The change of the ionosphere, for the low-frequency time-code signal that relies on it as a reflection medium for long-distance propagation, the signal field strength, and other parameters will also produce corresponding changes, which will affect the normal operation of the low-frequency time-code time service system. This paper selects the solar eclipse that occurred in China on 21 June 2020, and uses the existing measurement equipment to carry out experimental research on the low-frequency time-code signal. We measured and analyzed the signal field strength from 20 June 2020 to 23 June 2020, and combined solar activity data, ionospheric data, and geomagnetic data, and attempted to explore the reasons and rules of the change of signal parameters. The results showed that the field strength of the low-frequency time-code signal changed dramatically within a short time period, the max growth value can reach up to 17 dB mu V/m and the variation trend yielded 'three mutations'. This change in signal field strength is probably due to the occurrence of a solar eclipse that has an effect on the ionosphere. When the signal propagation conditions change, the signal strength will also change accordingly.
关键词	annual solar eclipse low-frequency time-code signal ionosphere signal field strength measurement
资助者	Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an
DOI	10.3390/s21041216
语种	英语
资助项目	Technology Innovation Plan of Xi'an[20191722615KYPT017JC019]
资助者	Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an ; Technology Innovation Plan of Xi'an
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000624693900001
出版者	MDPI
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/12153
专题	中国科学院国家授时中心
通讯作者	Wang, Xin
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Fengkai Low Frequency Time Code Time Serv Stn, Zhaoqing 526500, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xin,Li, Bo,Zhao, Fan,et al. Variation of Low-Frequency Time-Code Signal Field Strength during the Annular Solar Eclipse on 21 June 2020: Observation and Analysis[J]. SENSORS,2021,21(4):18.
APA	Wang, Xin.,Li, Bo.,Zhao, Fan.,Luo, Xinyu.,Huang, Luxi.,...&Li, Xiaohui.(2021).Variation of Low-Frequency Time-Code Signal Field Strength during the Annular Solar Eclipse on 21 June 2020: Observation and Analysis.SENSORS,21(4),18.
MLA	Wang, Xin,et al."Variation of Low-Frequency Time-Code Signal Field Strength during the Annular Solar Eclipse on 21 June 2020: Observation and Analysis".SENSORS 21.4(2021):18.