文件名称:das
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- 上传时间：2012-11-16
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Demodulating the signal.
DeAmpMod = (1/2).*(ademod(AmpMod,Fc,Fs, amdsb-sc ,num,den))
(ALTERNATIVE APPROACH)
DeAmpMod = AmpMod.*Cs
Designing butterworth low pass filter.
[num,den] = butter(2,.8)
FilteredOutput = filter(num,den,DeAmpMod)
Plotting the input speech signal data .
subplot(2,2,1)
axis normal
plot(data)
grid on
title( Initial Speech Signal )
xlabel( Samples )
ylabel( Speech Signal )
Plotting the modulated speech signal AmpMod .
subplot(2,2,2)
axis normal
plot(AmpMod)
title( Modulated Speech Signal )
xlabel( Samples )
ylabel( Modulated Signal )- Demodulating the signal.
DeAmpMod = (1/2).*(ademod(AmpMod,Fc,Fs, amdsb-sc ,num,den))
(ALTERNATIVE APPROACH)
DeAmpMod = AmpMod.*Cs
Designing butterworth low pass filter.
[num,den] = butter(2,.8)
FilteredOutput = filter(num,den,DeAmpMod)
Plotting the input speech signal data .
subplot(2,2,1)
axis normal
plot(data)
grid on
title( Initial Speech Signal )
xlabel( Samples )
ylabel( Speech Signal )
Plotting the modulated speech signal AmpMod .
subplot(2,2,2)
axis normal
plot(AmpMod)
title( Modulated Speech Signal )
xlabel( Samples )
ylabel( Modulated Signal )
DeAmpMod = (1/2).*(ademod(AmpMod,Fc,Fs, amdsb-sc ,num,den))
(ALTERNATIVE APPROACH)
DeAmpMod = AmpMod.*Cs
Designing butterworth low pass filter.
[num,den] = butter(2,.8)
FilteredOutput = filter(num,den,DeAmpMod)
Plotting the input speech signal data .
subplot(2,2,1)
axis normal
plot(data)
grid on
title( Initial Speech Signal )
xlabel( Samples )
ylabel( Speech Signal )
Plotting the modulated speech signal AmpMod .
subplot(2,2,2)
axis normal
plot(AmpMod)
title( Modulated Speech Signal )
xlabel( Samples )
ylabel( Modulated Signal )- Demodulating the signal.
DeAmpMod = (1/2).*(ademod(AmpMod,Fc,Fs, amdsb-sc ,num,den))
(ALTERNATIVE APPROACH)
DeAmpMod = AmpMod.*Cs
Designing butterworth low pass filter.
[num,den] = butter(2,.8)
FilteredOutput = filter(num,den,DeAmpMod)
Plotting the input speech signal data .
subplot(2,2,1)
axis normal
plot(data)
grid on
title( Initial Speech Signal )
xlabel( Samples )
ylabel( Speech Signal )
Plotting the modulated speech signal AmpMod .
subplot(2,2,2)
axis normal
plot(AmpMod)
title( Modulated Speech Signal )
xlabel( Samples )
ylabel( Modulated Signal )
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