Frequency control algorithm of domestic optically pumped small cesium clock based on optimal control theory
文献类型：期刊论文
| 作者 | Song Hui-Jie4,5; Dong Shao-Wu3,4,5; Wang Xiang4,5; Jiang Meng1,2; Zhang Yu4,5; Guo Dong4,5; Zhang Ji-Hai4,5 |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2024-03-20 |
| 卷号 | 73期号:6页码:11 |
| 关键词 | atomic clock state model linear quadratic Gaussian control Kalman filter atomic clock noise |
| ISSN号 | 1000-3290 |
| DOI | 10.7498/aps.73.20231866 |
| 英文摘要 | Frequency control of atomic clock is a key technology in time keeping operation. At present, the open-loop control algorithm is mainly used for the frequency control of foreign microwave clock, but the working principle and performance of domestic optically pumped small cesium clock (hereinafter referred to as domestic clock) are different from those of foreign atomic clock of the same type, so the algorithm cannot be well adapted to domestic clock. In order to improve the autonomy and security of the national standard time, based on the noise characteristics of domestic clock, in this work, the linear quadratic Gaussian control algorithm is studied in the framework of optimal control theory. This algorithm belongs to closed-loop control algorithm. The performance of domestic clock is studied from the aspects of synchronization time, frequency control accuracy and frequency control stability. Finally, the influence of different control intervals on the performance of domestic clock is analyzed. The results show that with the increase of the constraint matrix W-R in the quadratic loss function, the synchronization time increases, the control accuracy decreases, and the control short-term stability increases. When W-R is the same, with the increase of control interval, the synchronization time increases, the control accuracy decreases, and the control short-term stability increases. When W-R = 1, the synchronization time with control interval of 1 h is 5 h, the control accuracy is 1.83 ns, and the Allan deviation of 1 hour is 1.81x10(-13). When the control interval is 8 h, the synchronization time is 28 h, the control accuracy is 4.48 ns, and the Allan deviation of 1 h is 1.48x10(-13). The medium-term stability and long-term stability of domestic optically pumped small cesium clock are both improved. |
| WOS关键词 | TIMESCALES |
| 资助项目 | Western Light Project of Chinese Academy of Sciences[XAB2021YN22] ; Open Fund of Beijing Institute of Radio Metrology and Testing[JLJK2021001A002] ; Natural Science Basic Research Program of Shaanxi Province, China[2022JQ-014] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001195279300001 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | Western Light Project of Chinese Academy of Sciences ; Western Light Project of Chinese Academy of Sciences ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Natural Science Basic Research Program of Shaanxi Province, China ; Natural Science Basic Research Program of Shaanxi Province, China ; Western Light Project of Chinese Academy of Sciences ; Western Light Project of Chinese Academy of Sciences ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Natural Science Basic Research Program of Shaanxi Province, China ; Natural Science Basic Research Program of Shaanxi Province, China ; Western Light Project of Chinese Academy of Sciences ; Western Light Project of Chinese Academy of Sciences ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Natural Science Basic Research Program of Shaanxi Province, China ; Natural Science Basic Research Program of Shaanxi Province, China ; Western Light Project of Chinese Academy of Sciences ; Western Light Project of Chinese Academy of Sciences ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Open Fund of Beijing Institute of Radio Metrology and Testing ; Natural Science Basic Research Program of Shaanxi Province, China ; Natural Science Basic Research Program of Shaanxi Province, China |
| 源URL | [http://210.72.145.45/handle/361003/14734]  |
| 专题 | 国家授时中心_时间频率基准实验室 |
| 通讯作者 | Dong Shao-Wu |
| 作者单位 | 1.Xian Univ Sci & Technol, Sch Mech Engn, Xian 710054, Peoples R China 2.Xian Polytech Univ, Sch Elect & Informat, Xian 710048, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China 5.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song Hui-Jie,Dong Shao-Wu,Wang Xiang,et al. Frequency control algorithm of domestic optically pumped small cesium clock based on optimal control theory[J]. ACTA PHYSICA SINICA,2024,73(6):11. |
| APA | Song Hui-Jie.,Dong Shao-Wu.,Wang Xiang.,Jiang Meng.,Zhang Yu.,...&Zhang Ji-Hai.(2024).Frequency control algorithm of domestic optically pumped small cesium clock based on optimal control theory.ACTA PHYSICA SINICA,73(6),11. |
| MLA | Song Hui-Jie,et al."Frequency control algorithm of domestic optically pumped small cesium clock based on optimal control theory".ACTA PHYSICA SINICA 73.6(2024):11. |
入库方式： OAI收割
来源：国家授时中心
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