从瞬态到全域稳定度的测量方法进步
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摘要
将边沿效应推广到数字领域,利用数字边沿结合数字鉴相算法得到瞬态频率稳定度,将瞬态稳定度从10~(-4)每百纳秒提高到10~(-5)每百纳秒,解决了模拟相位重合检测技术存在的对硬件线路要求过高、设备漂移、无法扩展到全域稳定度等问题。数字方式可在瞬态稳定度的基础上扩展到短期及中、长期稳定度,从根源和影响效果等方面对频率源相位噪声进行更全面的描述。
In this paper,the edge effect is extended to the digital domain.The digital edge is combined with the digital phase discrimination algorithm to obtain the transient frequency stability,the transient stability increased from 10~(-4)/100 ns to 10~(-5)/100 ns.The invention solves the problems that the analog phase coincidence detection technology has high requirements for the hardware circuit,that the device has drifts,and that the technology cannot be extended to the global stability.The digital method can be extended to short-term, medium-and long-term stability based on transient stability,and a more comprehensive description of frequency source phase noise from the aspects of root cause and effect can be given.
In this paper,the edge effect is extended to the digital domain.The digital edge is combined with the digital phase discrimination algorithm to obtain the transient frequency stability,the transient stability increased from 10~(-4)/100 ns to 10~(-5)/100 ns.The invention solves the problems that the analog phase coincidence detection technology has high requirements for the hardware circuit,that the device has drifts,and that the technology cannot be extended to the global stability.The digital method can be extended to short-term, medium-and long-term stability based on transient stability,and a more comprehensive description of frequency source phase noise from the aspects of root cause and effect can be given.
引文
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[7]MILANO F,MANIAVACAS A O.Frequency-dependent Model for Transient Stability Analysis[J].IEEE Transactions on Power Systems,2019,34(1):806-809.
[8]ZANETTE D H.Frequency Stabilization by Synchronization of Duffing Oscillators[J].EPL(Europhysics Letters),2016,115(2):20009.
[9]ZHOU J,QIAN H M.Pointwise Frequency Responses Framework for Stability Analysis in Periodically Time-varying Systems[J].International Journal of Systems Science,2017,48(4):715-728.
[10]Li X.Global Exponential Stability of Impulsive Delay Systems with Flexible Impulse Frequency[J].IEEE Transactions on Systems,Man,and Cybernetics:Systems,2017(99):1-9.
[11]GUNN L J,CATLOW P G,AL-ASHWAL W A,et al.Simplified Three-cornered-hat Technique for Frequency Stability Measurements[J].IEEE Transaction on Instrumentation and Measurement,2014,63(4):889-895.
[2]王玉琢,张爱敏,张越,等.一种原子钟频率稳定度的估计方法[J].计量学报,2018,39(3):397-400.WANG Yuzhuo,ZHANG Aimin,ZHANG Yue,et al.A Method for Estimating Frequency Stability of Atomic Clock[J].Acta Metrologica Sinica,2018,39(3):397-400.
[3]许龙飞.一种全响应时间的频率稳定度测量方法[D].西安:西安电子科技大学,2017.
[4]UCHINO M,MOCHIZUKI K.Frequency Stability Measuring Technique Using Digital Signal Processing[J].Electronics and Communications in Japan,2004,87(1):21-33.
[5]YE Y X,XUAN Z Q,GU J S,et al.Research and Application of Regular Phenomenon between Periodic Signals[J].Chinese Physics B,2014,23(12):128-131.
[6]BAI L N,SU X,ZHOU W,et al.On Precise Phase Difference Measurement Approach Using Border Stability of Detection Resolution[J].Review of Scientific Instruments,2015,86(1):3-4.
[7]MILANO F,MANIAVACAS A O.Frequency-dependent Model for Transient Stability Analysis[J].IEEE Transactions on Power Systems,2019,34(1):806-809.
[8]ZANETTE D H.Frequency Stabilization by Synchronization of Duffing Oscillators[J].EPL(Europhysics Letters),2016,115(2):20009.
[9]ZHOU J,QIAN H M.Pointwise Frequency Responses Framework for Stability Analysis in Periodically Time-varying Systems[J].International Journal of Systems Science,2017,48(4):715-728.
[10]Li X.Global Exponential Stability of Impulsive Delay Systems with Flexible Impulse Frequency[J].IEEE Transactions on Systems,Man,and Cybernetics:Systems,2017(99):1-9.
[11]GUNN L J,CATLOW P G,AL-ASHWAL W A,et al.Simplified Three-cornered-hat Technique for Frequency Stability Measurements[J].IEEE Transaction on Instrumentation and Measurement,2014,63(4):889-895.