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Border effect-based precise measurement of any frequency signal |
| Bai Li-Na (白丽娜), Ye Bo (叶波), Xuan Mei-Na (宣美娜), Jin Yu-Zhen (金瑜珍), Zhou Wei (周渭) |
| Department of Measurement and Instrumentation, Xidian University, Xi'an 710071, China |
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Abstract Limited detection resolution leads to fuzzy areas during the measurement, and the discrimination of the border of a fuzzy area helps to use the resolution stability. In this way, measurement precision is greatly improved, hence this phenomenon is named the border effect. The resolution fuzzy area and its application should be studied to realize high-resolution measurement. During the measurement of any frequency signal, the fuzzy areas of phase-coincidence detection are always discrete and irregular. In this paper the difficulty in capturing the border information of discrete fuzzy areas is overcome and extra-high resolution measurement is implemented. Measurement precision of any frequency-signal can easily reach better than 1× 10-11/s in a wide range of frequencies, showing the great importance of the border effect. An in-depth study of this issue has great significance for frequency standard comparison, signal processing, telecommunication, and fundamental subjects.
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Received: 13 July 2015
Revised: 18 August 2015
Accepted manuscript online:
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PACS:
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06.30.Ft
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(Time and frequency)
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07.50.Qx
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(Signal processing electronics)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10978017 and 61201288), the Natural Science Foundation of Research Plan Projects of Shaanxi Province, China (Grant No. 2014JM2-6128), and the Sino-Poland Science and Technology Cooperation Projects (Grant No. 36-33). |
Corresponding Authors:
Bai Li-Na
E-mail: lnbai@mail.xidian.edu.cn
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Cite this article:
Bai Li-Na (白丽娜), Ye Bo (叶波), Xuan Mei-Na (宣美娜), Jin Yu-Zhen (金瑜珍), Zhou Wei (周渭) Border effect-based precise measurement of any frequency signal 2015 Chin. Phys. B 24 120601
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