地面型铷原子钟的气压补偿研究

李俊瑶; 李成康; 赵峰; 王晨; 王芳; 康松柏; 王鹏飞; 梅刚华; 明刚

doi:10.11938/cjmr20243112

波谱学杂志 >

2025 , Vol. 42 >Issue 1: 96 - 102

DOI: https://doi.org/10.11938/cjmr20243112

研究论文

地面型铷原子钟的气压补偿研究

李俊瑶 ,
李成康 ,
赵峰 ,
王晨 ,
王芳 ,
康松柏 ,
王鹏飞 ,
梅刚华 ,
明刚

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1.中国科学院原子频标重点实验室（中国科学院精密测量科学与技术创新研究院），湖北武汉 430071
2.中国科学院大学，北京 100049

*Tel: 15927259500, E-mail: ming@wipm.ac.cn.

收稿日期: 2024-04-22

网络出版日期: 2025-03-05

基金资助

国家重点研发计划资助(2023YFC2205402)

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Research on Pressure Compensation for the Rubidium Atomic Clock Working in Atmospheric Environment

LI Junyao ,
LI Chengkang ,
ZHAO Feng ,
WANG Chen ,
WANG Fang ,
KANG Songbai ,
WANG Pengfei ,
MEI Ganghua ,
MING Gang

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1. CAS Key Laboratory of Atomic Frequency Standards (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences), Wuhan 430071, China
2. University of Chinese Academy of Sciences, Beijing 100049, China

*Tel: 15927259500, E-mail: ming@wipm.ac.cn.

Received date: 2024-04-22

Online published: 2025-03-05

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摘要

气泡型铷原子钟体积小、重量轻、功耗低、维护成本低，在导航与通信领域被广泛使用.其中具有代表性的北斗三号星载高性能铷原子钟，具有优良的稳定度水平，1~10 000 s稳定度5E-13/ $τ$ ，天稳优于3E-15.但是在大气环境下，由于环境因素特别是气压的影响，1 000 s以后长期稳定度恶化了1~2个数量级.本文通过分析补偿算法引入噪声的影响和充分的实验验证，提出了一种高精度气压补偿方案.补偿后，地面型铷原子钟频率的万秒稳定度优于6.5E-15，提高了约一个量级.

关键词： 铷原子钟; 频率稳定度; 气压补偿

本文引用格式

李俊瑶 , 李成康 , 赵峰 , 王晨 , 王芳 , 康松柏 , 王鹏飞 , 梅刚华 , 明刚 . 地面型铷原子钟的气压补偿研究[J]. 波谱学杂志, 2025 , 42(1) : 96 -102 . DOI: 10.11938/cjmr20243112

Abstract

Vapor cell rubidium atomic clock is widely used in the fields of satellite navigation and communication with advantages including small size, light weight, low power and maintenance cost. The high-performance vapor cell rubidium atomic clocks in BDS-3 (Beidou-3 Navigation Satellite System) demonstrate exceptional stability, achieving 5E-13/ $τ$ within 1~10 000 s and exceeding 3E-15 at one day. However, in atmospheric environment, due to environmental factors, particularly the influence of atmospheric pressure, the long-term stability deteriorates by 1 to 2 orders of magnitude after 1 000 s. This paper proposes a high-precision pressure compensation method by analyzing noise introduced from compensation algorithm and conducting sufficient experimental verification. After compensation, the long-term stability at 10 000 s of ground-type rubidium atomic clock is improved by approximately one order of magnitude, reaching a frequency stability better than 6.5E-15.

Key words： rubidium atomic clock; frequency stability; pressure compensation

参考文献

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