Low Frequency Time Code Signal Flow and Fault Diagnosis
Pages 116 - 121
Abstract
Abstract: low frequency time code timing is an important part of time service system in China, which is widely used for civil and military users. The transmitter used in low-frequency time code timing is also the only high-power solid-state low-frequency time code transmitter in China. In view of its importance and uniqueness, and the composition of the low-frequency transmitter is extremely complex, the components are very many, and the correlation of each component is very strong. Therefore, in the equipment operation, the daily maintenance of low-frequency transmitter is very important, However, there are few related introduction and related technical materials. The purpose of this paper is to summarize the operation and maintenance experience of low-frequency transmitter for many years, analyze the signal flow and related carrier composition of low-frequency transmitter, systematically describe the relevant work flow of low-frequency signal, analyze the relevant signal fault phenomenon, and summarize the methods to solve the corresponding fault, so as to provide relevant technology and experience for the follow-up equipment operation and maintenance work.
References
[1]
2016. National Security Space Office. National Positioning, Navigation, and Timing Architecture Study: Final Report. 06(6).
[2]
Yan Bai, Guichen Wu, Linsheng Xu. 2006. Study on high precision timing of low frequency time code receiver . Journal of electronic measurement and instrumentation, 20 (03). pp. 102-105.
[3]
https://baike.so.com/gallery/list?ghid=first&pic_idx=1&eid=6455795&sid=6669481.
[4]
Design of radio wave digital display clock based on PIC MCU Network http://diagram.eepw.com.cn/diagram/circuit/cid/135/cirid/15886.
[5]
Yu Tang, Chuanju Liu, Mingming Xiao. 2009. Design of intelligent digital wireless control timing clock. Guangxi physics. 03 (15). pp. 36-38.
[6]
Xiaohui Li. Zhong Dou. Xiaohui Zhao. 2015. Beijing time: long short wave time service system. Zhejiang Education Press, 12 (10). pp. 145-148.
[7]
M. Aguirre−Hernandez and M. Linares−Aranda. 2011. CMOS Full–Adders for Energy−Efficient Arithmetic Applications. IEEE Transaction on Very Large Scale Integration (VLSI) System, 19 (4). pp. 718-721.
[8]
Dongwen Liu, Wenbo Zeng, Liting Cai. 2018. Design of digital phase shift trigger. Electromechanical engineering technology, 6. pp. 41.
[9]
Zilong Ma. 2018. Analysis of the installation and maintenance of 10kW national all solid state TV transmitter. Digital communication world, 08. pp. 189-190.
[10]
Yongsheng Zhang. 2017. Analysis on power amplification of 10kW dam medium wave transmitter. Western radio and television, 14. pp. 238.
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Published In
December 2021
290 pages
ISBN:9781450385169
DOI:10.1145/3508297
Copyright © 2021 ACM.
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Association for Computing Machinery
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Published: 21 April 2022
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EEET 2021
EEET 2021: 2021 4th International Conference on Electronics and Electrical Engineering Technology
December 3 - 5, 2021
Nanjing, China
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