2-30 已知某信道无差错传输的最大信息速率为Cmax,信道的带宽为Cmax/2(Hz),设信道中噪声为高斯白噪声,单边功率谱密度为n0(W/Hz),试求此时系统中信号的平均功率。
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1.A dragon seems to be a frightening image in western culture. ( )
A. 对
B. 错
2.Chinese people always show their love and respect to the dragon.( )
A. 对
B. 错
3.Chinese character “龙” implies a positive meaning.( )T
A. 对
B. 错
4.It isuncommonfor us to seek common ground while setting aside our differences.( )
A. 对
B. 错