1、 However, NRZ _ I codes used in 8273 controller have some inherent drawbacks incarrying bit information.
然而这种控制器所采用的NRZ_I码,在载送位信息方面是有缺陷的.
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2、 Unipolar non - return - to - zero ( NRZ ) waveform and its power spectrum.
单极性不 归零码 ( NRZ ) 的波形及其功率谱.
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