Changes between Version 3 and Version 4 of DSP/SampSin


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Timestamp:
Jul 6, 2015, 3:21:50 PM (9 years ago)
Author:
dlambros
Comment:

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  • DSP/SampSin

    v3 v4  
    3838
    3939Once opened configure the following with the necessary blocks:
    40 [[Image(gnusinusoid.png)]]
     40
     41[[Image(gnusinusoid.png, width=600)]]
    4142
    4243Compile and run the configuration and you will get the following output with a slider to adjust the frequency of the input sinusoid.
    4344
    44 [[Image(sinkout.png)]]
     45[[Image(sinkout.png, width=300)]]
    4546
    4647= Determining Frequencies of Multiple Sinusoids =
    4748In the case of when you receive a signal that is made of multiple sinusoidal signals that are summed together and you would like to know the frequencies of the individual signals that make of the signal.
    4849
     50[[Image(diagram1.png, width=600)]]
     51
    4952Below is what the received signal looks like:
     53
     54[[Image(scope.png, width=400)]]
    5055
    5156From this, you wouldn't be able to glance and determine the signals that make it up. But if you view the signals FFT as seen below you can see impulses at the frequencies that make up this signal:
    5257
     58[[Image(diagram2.png, width=600)]]
     59
     60[[Image(fft.png, width=400)]]