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Improvement of Frequency Locking Algorithm for Atomic Frequency Standards

机译:原子频率标准频率锁定算法的改进

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摘要

The authors describe a novel method of frequency locking algorithm for atomic frequency standards. The new algorithm for locking the microwave frequency to the Ramsey resonance is compared with the old one that had been employed in the cesium atomic beam frequency standards such as NIST-7 and KRISS-1. Numerical simulations for testing the performance of the algorithm show that the new method has a noise filtering performance superior to the old one by a factor of 1.2 for the flicker signal noise and 1.4 for random-walk signal noise. The new algorithm can readily be used to enhance the frequency stability for a digital servo employing the slow square wave frequency modulation.
机译:作者介绍了一种用于原子频率标准的频率锁定算法的新方法。将用于锁定微波频率至Ramsey共振的新算法与铯原子束频率标准(例如NIST-7和KRISS-1)中采用的旧算法进行了比较。用于测试该算法性能的数值模拟表明,该新方法的噪声过滤性能优于旧方法,其闪烁信号噪声系数为1.2,随机游走信号噪声系数为1.4。新算法可以很容易地用于增强采用慢方波频率调制的数字伺服系统的频率稳定性。

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  • 来源
    《Japanese journal of applied physics》 |2010年第9issue1期|p.096601.1-096601.4|共4页
  • 作者单位

    Advanced Photonics Research Institute, GIST, Gwangju 500-712, Korea;

    rnAdvanced Photonics Research Institute, GIST, Gwangju 500-712, Korea;

    rnKorea Research Institute of Standards and Science, Daejeon 305-340, Korea;

    rnKorea Research Institute of Standards and Science, Daejeon 305-340, Korea;

    rnKorea Research Institute of Standards and Science, Daejeon 305-340, Korea;

    rnKorea Research Institute of Standards and Science, Daejeon 305-340, Korea;

    rnKorea Research Institute of Standards and Science, Daejeon 305-340, Korea;

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