| 调相白噪声对频率传递短期稳定度的影响分析 |
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| 引用本文： | 曹彦武,卢麟,朱勇,陈寅芳.调相白噪声对频率传递短期稳定度的影响分析[J].宇航计测技术,2011,31(2):43-45. |
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| 作者姓名： | 曹彦武 卢麟 朱勇 陈寅芳 |
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| 作者单位： | 解放军理工大学通信工程学院,南京,210007 |
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| 摘 要： | 详细分析了调相白噪声对频率稳定度的影响。经过理论分析,得出了频率传递系统信噪比的开方与稳定度成正比,调制信号频率与稳定度成正比。经过分析得到,在一定范围内,提高激光器光功率可以提高频标传递的稳定度;调制频率和传递系统信噪比是影响短期稳定度的两个重要因素;通过增加EDFA的方法不能提高传递系统短期稳定度,反而每增加4到5个EDFA,稳定度下降1个数量级。
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| 关 键 词： | 调相白噪声 频率稳定度 频率传递 信噪比 |
The Analyses of White Phase' Impact on Short-Term Stability of Frequency Transfer over Optical Fiber |
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| CAO Yan-wu,LU Lin,ZHU Yong,CHEN Yin-fan.The Analyses of White Phase' Impact on Short-Term Stability of Frequency Transfer over Optical Fiber[J].Journal of Astronautic Metrology and Measurement,2011,31(2):43-45. |
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| Authors: | CAO Yan-wu LU Lin ZHU Yong CHEN Yin-fan |
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| Institution: | CAO Yan-wu LU Lin ZHU Yong CHEN Yin-fan(PLA University of Science and Technology,Institute of Communication Engineering,Nanjing 210007) |
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| Abstract: | The influence of white phase noise on the frequency stability is remarkable.We conclude that the stability of frequency can be improved by increasing the laser optical power;and modulation signal frequency and SNR of transfer system are the two important factor which influence the short-term stability;the short-term stability can not be improved through adding EDFA,and even declines ten times every four or five EDFAs. |
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| Keywords: | White phase noise Frequency stability Frequency trarsfer Signal to noise ratio |
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