通信原理课程设计

直流Рur=ur-PAC;Р实验运行结果为:Р实验三编程实现数字基带信号的码型的仿真Р3.1基本码型Р假设输入x=[1,0,1,0,0,1,0,0,0,1,0,1,0,1,0,1];运行的结果都源自x。Р 3.1.1 双极性不归零码与双极性归零码Р下面是双极性不归零码的程序:Рfunction y=dnrz_ly(x)Рq=0.5;Рgrid=300;Рt=0:1/grid:length(x);Рfor i=1:length(x)Р if x(i)==1Р for j=1:gridР y((i-1)*grid+j)=1; Р end Р elseР for j=1:gridР y((i-1)*grid+j)=-1; Р endР endРendРy=[y,x(i)];РM=max(x);Рm=min(y);Рplot(t,y);Рaxis([0,i,m-0.1,M+0.1]);title('双极性不归零码');РendР双极性归零码与单极性类似,参考下面的程序,这里不赘述。下面附上运行结果图:Р3.1.2单极性不归零码与单极性归零码Р单极性不归零码与双极性的类似,下面附上单极性归零码的程序:Рfunction y=srz_ly(x)Рq=0.5;Рgrid=300;Рt=0:1/grid:length(x);Рfor i=1:length(x)Р if x(i)==1Р for j=1:grid*qР y((i-1)*grid+j)=1;Р y((i-1)*grid+j+grid*q)=0;Р end Р elseР for j=1:gridР y((i-1)*grid+j)=0;Р endР endРendРy=[y,x(i)];РM=max(x);Рm=min(y);Рplot(t,y);Рaxis([0,i,m-0.1,M+0.1]);title('单极性归零码');