DU Baoqiang, DONG Shaofeng, ZHOU Wei, WANG Yanfeng, GUO Shuting. Quantized Phase Step Technique Based on Different Frequency Signals and Its Characteristics[J]. Chinese Journal of Electronics, 2013, 22(3): 621-626.
Citation: DU Baoqiang, DONG Shaofeng, ZHOU Wei, WANG Yanfeng, GUO Shuting. Quantized Phase Step Technique Based on Different Frequency Signals and Its Characteristics[J]. Chinese Journal of Electronics, 2013, 22(3): 621-626.

Quantized Phase Step Technique Based on Different Frequency Signals and Its Characteristics

Funds:  This work is supported by the Postdoctoral Grant of China (No.2011M501446, No.2012T50798), the Open Fund of Key Laboratory of Precision Navigation and Timing Technology (Chinese Academy of Sciences) (No.PNTT01), the Basic and Advanced Technology Research Foundation of Henan Province (No.122300410169), the Doctor Fund of Zhengzhou University of Light Industry (No.2011BSJJ031), the National Natural Science Foundation of China (No.10978017), and the Fundamental Research Funds for the Central Universities (No.K5051204003).
  • Received Date: 2012-08-01
  • Rev Recd Date: 2012-10-01
  • Publish Date: 2013-06-15
  • Through theoretical analysis and experiments, we discovered the quantized phase step technique existing in two cyclical movements, and the variation law of phase difference between two different frequency signals. This discovery is a major breakthrough in the traditional phase processing for researching frequency signals or cyclical movements that widely exist in nature. It has realized direct phase comparison between any signals without frequency normalization. Experimental results show that the resolution with femtosecond (fs) can be easily achieved in frequency measurement, frequency standard comparison and control on the basis of the quantized phase step characteristics. This important discovery can be widely used in navigation positioning, space technique, communication, radar, astronomy, atomic frequency standard and so on.
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