一、用MATLAB实现如下序列,并画出图形:①单元采样序列移位,100),3()(−=nnnx;
揭示:实现单元采样序列:0001{)(==nnn,可经由如下语句实现:x=zeros(1,N);x(1)=1;n=0:10;x=[zeros(1,3),1,zeros(1,7)];figure(1);stem(n,x);②单元阶跃序列移位,100),3()(−=nnunx揭示:实现单元阶跃序列:0001{)(==nnnu,可经由如下语句实现:x=ones(1,N);n=0:10;x=[zeros(1,3),1,ones(1,7)];figure(2);stem(n,x);
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