test1.asv

mpsk加高斯信道传输模型

clear all;
clc
code_num=1024;
symbol_rate=2000
sample_rate=16*symbol_rate;
carrier_frequency=2*symbol_rate;
shape=2;
mode=2;
[y,x]=modla(code_num,sample_rate,carrier_frequency,symbol_rate,shape,mode);
N=4096;
f=sample_rate*(0:N-1)/N;
y=awgn(y,0,0);
yfft=abs(fft(y,N));
yfft=fftshift(yfft);
plot(f,yfft)
scatterplot(x)