The weak frequency anomaly detection method of atomic clocks based on Kalman filter and extrapolation-accumulation

doi:10.1177/00202940211000073

	The weak frequency anomaly detection method of atomic clocks based on Kalman filter and extrapolation-accumulation
	Yan, Ran 1,2; Liu, Junliang 1,3; Wu, Jianfeng 1,3,4; Xu, Chao 1,3; Hu, Yonghui 1,3
刊名	MEASUREMENT & CONTROL
	2021-04-15
页码	11
关键词	Frequency anomaly atomic clock Kalman filter extrapolation-accumulation chi-square statistics
ISSN号	0020-2940
DOI	10.1177/00202940211000073
英文摘要	A new method based on the innovation of Kalman filter and extrapolation-accumulation is proposed to detect weak frequency anomalies in atomic clocks with short detection time and high detection probability. In this method, the detection statistics of the innovation extrapolation method in several epochs are accumulated. It avoids the influence of outliers, increases the noncentrality parameter of chi-square distribution, and realizes more effective detection of weak frequency anomalies. The simulation results show that compared with the innovation method and the innovation extrapolation method, the new method has a higher detection probability for micro frequency anomalies, and the detection time is shortened. The new method is used to analyze the real data of the cesium atomic clock, and the results are consistent with the simulation results.
资助项目	ZFS Satellite Navigation Test System of China[ZFS20001D]
WOS关键词	SIGNAL INTEGRITY ; JUMPS
WOS研究方向	Automation & Control Systems ; Instruments & Instrumentation
语种	英语
出版者	SAGE PUBLICATIONS LTD
WOS记录号	WOS:000654519600001
资助机构	ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China ; ZFS Satellite Navigation Test System of China
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/10718]
专题	中国科学院国家授时中心
通讯作者	Yan, Ran
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, 3 East Shuyuan Rd, Xian 710600, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, Xian, Peoples R China 4.Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yan, Ran,Liu, Junliang,Wu, Jianfeng,et al. The weak frequency anomaly detection method of atomic clocks based on Kalman filter and extrapolation-accumulation[J]. MEASUREMENT & CONTROL,2021:11.
APA	Yan, Ran,Liu, Junliang,Wu, Jianfeng,Xu, Chao,&Hu, Yonghui.(2021).The weak frequency anomaly detection method of atomic clocks based on Kalman filter and extrapolation-accumulation.MEASUREMENT & CONTROL,11.
MLA	Yan, Ran,et al."The weak frequency anomaly detection method of atomic clocks based on Kalman filter and extrapolation-accumulation".MEASUREMENT & CONTROL (2021):11.