MATLAB: How to use spectrum analyzer object to show a signal waveform

dspMATLABobjectspectrum analyzerwaveform

hsb = dsp.SpectrumAnalyzer;

Best Answer

Its purpose is to show signal's spectrum
    fs = 1000;
    x = sin(2*pi*200*(0:1999)'/fs);
    hsb = dsp.SpectrumAnalyzer('SampleRate', fs);
    step(hsb,x)
If you want to see the time domain waveform, you should use dsp.TimeScope instead
    fs = 1000;
    x = sin(2*pi*5*(0:1999)'/fs);
    hts = dsp.TimeScope('SampleRate',fs,'TimeSpan',2);
    step(hts,x)
HTH
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