目录

1、数字基带传输系统

2、波形

1、数字基带传输系统

clear all;clc;N_sample = 8; %每个码元的抽样点数N = 1000; %码元数Ts = 1; %每符号时长dt = Ts/N_sample; %抽样时间间隔t = 0:dt:(N*N_sample-1)*dt;T = N*N_sample*dt;%生成单极性序列d = (sign( randn(1,N) ) + 1)/2;data = sigexpand(d,N_sample); %对序列间隔插入 N_sample-1 个 0%生成单极性波形gt1 = ones(1,N_sample); %NRZ 非归零波形gt2 = [ones(1,N_sample/2), zeros(1,N_sample/2)];%RZ 归零波形st1 = conv(data,gt1);st