High-Resolution Multi-Channel Frequency Standard Comparator Using Digital Frequency Measurement

doi:10.3390/s21165626

CORC > 国家授时中心 > 中国科学院国家授时中心 > 时间频率测量与控制研究室

	High-Resolution Multi-Channel Frequency Standard Comparator Using Digital Frequency Measurement
	Xiao, Bo 1,2,3; Liu, Ya 1,2,3; Li, Xiaohui 1,2,3; Deng, Zhifeng 1,2,3; Xue, Yanrong 1,2,3
刊名	SENSORS
	2021-08-01
卷号	21 期号:16 页码:13
关键词	multichannel frequency standard comparison digital frequency measurement
DOI	10.3390/s21165626
英文摘要	The rapid improvement accuracy of the atomic frequency standard puts forward higher requirements for the measurement resolution of the atomic frequency standard comparison system. To overcome the defect that the single zero-crossing point detection is sensitive to noise in the traditional dual mixer time difference measurement method, a digital frequency measurement method is proposed. This method combines sinusoidal beat technology, multi-channel synchronous acquisition technology, and digital frequency measurement technology, and uses differential compensation of system error to realize the precision measurement of atomic frequency standard. The frequency measurement accuracy is less than 2.5 x 10(-14) and the noise floor is better than 6.5 x 10(-15)/tau = 1 s. The system has a high frequency measurement accuracy and a low noise floor, which can realize the precise measurement of a highly stable frequency source.
资助项目	National Natural Science Funds of China[U2031125]
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
语种	英语
出版者	MDPI
WOS记录号	WOS:000690006800001
资助机构	National Natural Science Funds of China ; National Natural Science Funds of China ; National Natural Science Funds of China ; National Natural Science Funds of China ; National Natural Science Funds of China ; National Natural Science Funds of China ; National Natural Science Funds of China ; National Natural Science Funds of China
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/10559]
专题	国家授时中心_时间频率测量与控制研究室
通讯作者	Liu, Ya
作者单位	1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Yu Quan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, East Shu Yuan Rd, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Bo,Liu, Ya,Li, Xiaohui,et al. High-Resolution Multi-Channel Frequency Standard Comparator Using Digital Frequency Measurement[J]. SENSORS,2021,21(16):13.
APA	Xiao, Bo,Liu, Ya,Li, Xiaohui,Deng, Zhifeng,&Xue, Yanrong.(2021).High-Resolution Multi-Channel Frequency Standard Comparator Using Digital Frequency Measurement.SENSORS,21(16),13.
MLA	Xiao, Bo,et al."High-Resolution Multi-Channel Frequency Standard Comparator Using Digital Frequency Measurement".SENSORS 21.16(2021):13.