MATLAB(2-1-3)卷积与维特比解码代码(共3页).doc

卷积编码function output = convolutionX( X )%UNTITLED Summary of this function goes here% Detailed explanation goes heren=length(X);n1=0.01:0.01:n;for(i=1:n) is(i-1)*100+1:i*100)=X(i);endfiguresubplot(2,1,1)plot(n1,is);axis(0,n+1,-0.1,1.1);title(原始信号)grid Y=0 0 0;%output(1)=mod(sum(Y),2);%output(2)=mod(Y(1)+Y(3),2);for(i=1:n) Y(1)=Y(2); Y(2)=Y(3); Y(3)=X(i); Y; output(2*(i-1)+1)=mod(sum(Y),2); output(2*(i-1)+2)=mod(Y(