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Course Project 102

# Course Project 102 - Task 3>>...

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Astha Kalia 803791434 11/30/2011 EE 102 Course Project Task 1 >> ds = d(16000+1:16000+2560); >> Ds=fft(ds); >> f= [0:0.1:256-0.1]; >> plot(f, abs(Ds)); >> xlabel('Frequency'); >> ylabel('Amplitude'); Task 2 >> t= [1:length(d)]/256000; >> demod= d.*exp(-1*j*47000*2*pi*t); >> dmods= demod(16000+1:16000+2560); >> Dmod=fft(dmods);

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>> plot(f, abs(Dmod)); >> xlabel('Frequency'); _____________________________________________________________________________ ________
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Unformatted text preview: Task 3 >> time= [-100:100]/256000; >> transfer= sinc(10000*time); >> y= conv(demod, transfer); >> ymods= y(16000+1:16000+2560); >> lowpass=fft(ymods); >> plot(f, abs(lowpass)); >> xlabel('Frequency'); Warning: Imaginary parts of complex X and/or Y arguments ignored _____________________________________________________________________________ ________ Task 4 >> ys= y(1:32:end)/max(abs(y)); Task 5 >> sound(abs(ys));...
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Course Project 102 - Task 3>>...

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