systemsss.m

对数字信号进行分析

function [systems1]=systemsss(jz1,data13,tb)
runum1=length(data13);
data14=zeros(1,runum1);
  %4QAM调制
  for i=1:1:runum1
      if data13(1,i)==0
           ww=-4.5;
      else
          ww=4.5;
      end
      data14(1,i)=ww;
  end
runum2=length(jz1);
systems1=zeros(1,runum1+runum2);
systems1(1,1:runum1)=data14;
runum3=runum1+1;
systems1(1,runum3:runum2+runum1)=jz1;
t1=tb:tb:tb*(runum1+runum2);
% figure
% stairs(t1,systems1)