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M=4;d=1;t=0:1/1e3:0.999;a=randint(1,20,2); for n=0:9sym(n+1)=a(2*n+1)*2+a(2*n+2);end s=sym(ceil(10*t+0.01).*cos(2*pi*100*t); subplot(3,1,1); plot(t,a(ceil(100*t+0.1)/5); axis(0,1,-0.2,1.2); subplot(3,1,2); plot(t,sym(ceil(10*t+0.01);subplot(3,1,3); plot(t,s)
