Improvement of Frequency Locking Algorithm for Atomic Frequency Standards
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概要
- 論文の詳細を見る
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.
- 2010-09-25
著者
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LEE Soo
Korea Institute of Machinery and Metals
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Park Sang
Korea Atomic Energy Research Institute
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Lee Jong
Korea Food & Drug Administration
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Lee Ho
Korea Atomic Energy Research Institute
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Park Young-Ho
Advanced Photonics Research Institute, GIST, Gwangju 500-712, Korea
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Lee Ho
Korea Research Institute of Standards and Science, Daejeon 305-340, Korea
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Kang Hoonsoo
Advanced Photonics Research Institute, GIST, Gwangju 500-712, Korea
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Kwon Taeg
Korea Research Institute of Standards and Science, Daejeon 305-340, Korea
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