单极性归零波形的功率谱，占空比为0.5-Unipolar zeroing wave power spectrum, the ratio is 0.5

设定一个信息码串，产生常见的编码如单极性非归零、双极性非归零、单极性归零、双极性归零、AMI、HDB3码的时域波形； 不考虑噪声影响，以采样电平为依据恢复出原始信息串。-Set up an information code string to produce a common code such as the unipolar NRZ, bipolar, non-zero, zero unipolar, bipolar zero, AMI, HDB3 code in time domain

通信原理仿真实验：AM、FM调制、单双极性归零码波形及功率谱、根升余弦滚降系统功率谱密度及眼图、信源分布对AMI功率谱的影响。-Communication Theory simulation: AM, FM modulation, single and double polarity zero code waveform and power spectrum, root raised cosine roll-off system power spectral density and eye di

很好地实现了双极性单极性归零码的波形和功率谱密度(The waveform and power spectral density of bipolar unipolar return to zero code are well realized)