NRZ code doesn't contain synchronous clock frequency.
它本身不含有位同步时钟分量。
It states designing idea and realizing method of the system, analyses in detail the working principle of the system and mutual transforming method of NRZ code and AMI code.
阐述了该系统的设计思想和实现方法，详细分析了该系统的工作原理和单极性不归零码与双极性归零码的相互转换方法。
By analysing frequency spectrum in this paper, we can understand that when NRZ code be transferred into RZ code of 1/2 mark-to-space ratio, the timing clock can be obtained at largest power.
本文通过对NRZ、RZ伪随机码序列进行频谱分析，得知当NRZ码变换成码元占空比为1/2的RZ码时，所提取出的定时时钟功率最强。
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