On Group Phase Quantization and Its Physical Characteristics
DU Bao-Qiang1,2, ZHOU Wei1, YU Jian-Guo1, DONG Shao-Feng1
1Department of Measurement and Instrument, Xidian University, Xi'an 710071 2Department of Information Engineering, Henan Vocational and Technical College, Zhengzhou 450046
On Group Phase Quantization and Its Physical Characteristics
DU Bao-Qiang1,2, ZHOU Wei1, YU Jian-Guo1, DONG Shao-Feng1
1Department of Measurement and Instrument, Xidian University, Xi'an 710071 2Department of Information Engineering, Henan Vocational and Technical College, Zhengzhou 450046
摘要The physical characteristics of phase quantum are further revealed, based on the proposition of concepts of the greatest common factor frequency, the least common multiple period, quantized phase shift resolution and equivalent phase comparison frequency. Then the problem of phase comparison between different frequency signals is certified in detail. Using the basic principle of phase comparison between different frequencies and the variation law of group phase difference, a point of view on group phase quantization is presented. Group phase quantum is not only an indivisible individual of group phase, but also a basic unit composing group phase difference. It is equal to the equivalent phase comparison period of phase comparison between different frequencies in size. Experimental results show not only a high measurement resolution of 10−12/s in frequency measurement based on group phase quantum, but also a super-high locked phase precision of 10−13/s in active H atomic clock.
Abstract：The physical characteristics of phase quantum are further revealed, based on the proposition of concepts of the greatest common factor frequency, the least common multiple period, quantized phase shift resolution and equivalent phase comparison frequency. Then the problem of phase comparison between different frequency signals is certified in detail. Using the basic principle of phase comparison between different frequencies and the variation law of group phase difference, a point of view on group phase quantization is presented. Group phase quantum is not only an indivisible individual of group phase, but also a basic unit composing group phase difference. It is equal to the equivalent phase comparison period of phase comparison between different frequencies in size. Experimental results show not only a high measurement resolution of 10−12/s in frequency measurement based on group phase quantum, but also a super-high locked phase precision of 10−13/s in active H atomic clock.
DU Bao-Qiang;ZHOU Wei;YU Jian-Guo;DONG Shao-Feng
. On Group Phase Quantization and Its Physical Characteristics[J]. 中国物理快报, 2011, 28(5): 50601-050601.
DU Bao-Qiang, ZHOU Wei, YU Jian-Guo, DONG Shao-Feng
. On Group Phase Quantization and Its Physical Characteristics. Chin. Phys. Lett., 2011, 28(5): 50601-050601.
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[8] Zhou H and Zhou W 2006 IEEE Frequency Control Symp. 267
2011, Vol. 28 
