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

doi:10.1177/00202940211000073

NTSC-IR

	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
	2021-04-15
发表期刊	MEASUREMENT & CONTROL
ISSN	0020-2940
页码	11
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.
关键词	Frequency anomaly atomic clock Kalman filter extrapolation-accumulation chi-square statistics
资助者	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
DOI	10.1177/00202940211000073
关键词[WOS]	SIGNAL INTEGRITY ; JUMPS
语种	英语
资助项目	ZFS Satellite Navigation Test System of China[ZFS20001D]
资助者	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
WOS研究方向	Automation & Control Systems ; Instruments & Instrumentation
WOS类目	Automation & Control Systems ; Instruments & Instrumentation
WOS记录号	WOS:000654519600001
出版者	SAGE PUBLICATIONS LTD
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/10719
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.