?? fmmode.m
字號:
clcFs = 16000; % Sampling rate of signalFc = 4000; % Carrier frequencyFt = 100;t = [0:2000]'/Fs; % Sampling timess = sin(2*pi*Ft*t);%調制信號a = modulate(s,Fc,Fs,'fm');%調制1dev = 500; % Frequency deviation in modulated signalb = fmmod(s,Fc,Fs,dev); %fmmod 調制2z = fmdemod(b,Fc,Fs,dev); %fmdemod 解調subplot(2,1,1);plot(z);subplot(2,1,2);plot(z);zz = fft(b, 1024);%fftf = 1000*(0:512)/1024;yy = zz.* conj(zz) / 1024;plot(f,yy(1:513))
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -