Precise frequency synchronization detection method based on the group quantization stepping law

Baoqiang Du, Ran Deng and Xiyan Sun

PLOS ONE, 2019, vol. 14, issue 2, 1-12

Abstract: A precise frequency synchronization detection method is proposed based on the group quantization steeping law. Based on the different-frequency group quantization phase processing, high-precision frequency synchronization can be achieved by measuring phase comparison result quantization. If any repeated phase differences in the quantized phase comparison results are used as the starting and stopping signal of the counter gate, the time interval between identical phase differences is a group period as gate time. By measuring and analyzing the quantized phase comparison results, the ±1−word counting error is overcome in the traditional frequency synchronization detection method, and the system response time is significantly shortened. The experimental results show that the proposed frequency synchronization detection method is advanced and scientific. The measurement resolution is notably stable and the frequency stability better than the E-12/s level can be obtained. The method is superior to the traditional frequency synchronization detection method in many aspects, such as system reliability and stability, detection speed, development cost, power consumption and volume.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0211478

DOI: 10.1371/journal.pone.0211478

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