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    一种SDH光纤传输系统设备时钟的研究与实现
    Research and Realization of SDH Equipment Clock of Fiber Transmission System
      
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    中文摘要:
          介绍了一种具有很高频率和相位稳定度的ＳＤＨ设备时钟的构成及设计原理，并给出了有关的测试结果，测试结果表明，该ＳＤＨ设备时钟对时钟基准具有很好的跟踪特性。
    英文摘要:
          This paper introduces the structure and principle of a SDH equipment clock (SEC) which has very high frequency and phase stabilities.And the relative test result is reported.The test result shows that the SEC has excellent character to track the clock reference.
    史国炜  王治  王峰  陈明
    西北工业大学自动控制系,陕西西安
    中文关键词:  同步数字体制 SDH设备时钟 光纤传输系统
    英文关键词:Synchronous data hierarchy,SDH equipment clock,Digital phase locked loop
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