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New Frequency Standard Comparison System Based on the Group Quantization Phase Processing

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A new frequency standard comparison system is proposed based on the group quantization phase processing. By shortening the width of phase coincidence fuzzy area and capturing the best group phase coincidences, we reduce the randomness of the counting gate and improve the measurement precision of the comparison system. The method is based on the Field-programmable gate array (FPGA), which not only retains the advantage using phase synchronization detection technology to overcome the ±1-word counting error, but also accelerates the system response time, simplifies the measurement equipment, and reduces the development cost and power consumption. The experimental results show that the method is reasonable and scientific, and the comparison accuracy of the system can reach the E-12 s-1 level, obviously superior to the measurement accuracy of the traditional frequency standard comparison method, which has a wide application and popularization value.

Frequency standard comparisonGroup quantization phaseGreatest common factor periodPhase group synchronization

DU Baoqiang、DENG Ran、SUN Xiyan、FU Qiang

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School of Electronic Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China

School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China

This work is supported by the National Natural Science Foundation of ChinaThis work is supported by the National Natural Science Foundation of ChinaThis work is supported by the National Natural Science Foundation of ChinaThis work is supported by the National Natural Science Foundation of ChinaNational Key R&D Program of ChinaProject of Higher Education Teaching Reform and Practice in Henan ProvinceDepartment of Science and Technology of Guangxi Zhuang Autonomous RegionDepartment of Science and Technology of Guangxi Zhuang Autonomous RegionDepartment of Science and Technology of Guangxi Zhuang Autonomous RegionSichuan Science and Technology Plan ProjectGuilin Science and Technology Bureau ProjectGuilin Science and Technology Bureau ProjectBasic Ability Promotion Project of Young and Middle-Aged Teachers in Universities of Guangxi province

U1304618No.41804155No.61561016No.618610082018YFB05051032017SJGLX353AC16380014No.AA17202048No.AA1720203317ZDYF149520160202No.20170216ky2016YB164

2019

10.1049/cje.2019.01.011

中国电子杂志(英文版)

中国电子杂志(英文版)

CSTPCDCSCDSCIEI
ISSN：1022-4653
年,卷(期)：2019.28(2)
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