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码间串扰如何解决
更新时间: 2020-10-20 00:00:00  

方法一:由于数字信息序列是随机的,可通过在接收滤波器输出的信号,抽样信号中的各项相互抵消,使码间串扰为0,解决码间串扰;

方法二:使邻码元的前一个码元的波形到达后一个码元,即可使抽样判决时刻已经衰减到0,即也可满足要求,解决码间串扰。

注意:解决码间串扰需要对基带传输系统的总传输特性的h波形提出要求,但这种波形不易实现,现实中的h波形有很长的拖尾,正是由于每个码元的拖尾造成了对相邻码元的串扰。

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