Learn more about Signal Processing Toolbox

Producing a PSD Estimate

We now produce a PSD estimate of the signal we created in the previous section. To generate a PSD estimate, you apply a spectral estimation method on your spectrum object and data. ,

h = spectrum.welch;
Hpsd=psd(h,y,'Fs',Fs,'ConfLevel',0.95);
plot(Hpsd)

The syntax for using psd, msspectrum, or pseudospectrum is the same. The first input is the spectrum object (h) and the second input (y) is the signal (data), followed by any settable properties using property-value pairs ('Fs', Fs,'ConfLevel',0.95,'). To set property-value pairs, you list the property first and then the value for that property.

Creating a Spectral Analysis Object

Changing Spectral Analysis Object Property Values

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