singauss.m

来自「DSP 系统带有信号生成 滤波等相关功能 下载后 请用解压缩软件打开」· M 代码 · 共 24 行

global t;
global t1;
global t2;
global t0;
global y;
global y1;
global N;
SNR=str2num(get(handles.SNR,'string'));
fudu=str2num(get(handles.fudu,'string'));
f=str2num(get(handles.pinlv,'string'));
t1=str2num(get(handles.startt,'string'));
t2=str2num(get(handles.endt,'string'));
chux=str2num(get(handles.chux,'string'));

Ts=0.01;
t=-(t2-t1)/2:Ts:(t2-t1)/2;
y0=fudu*sin(2*pi*f*t+chux);
y=awgn(y0,SNR);
y1=xcorr(y);
N=length(y1);
y1=fft(y1);
y1=fftshift(y1);
t0=-(t2-t1):Ts:(t2-t1);
t0=2*pi/N*t0;