dspdata display units for spectrum

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How can I change dspdata spectrum units, its in dB (dB/Hz for PSD), I would like the spectrum in real units.

Accepted Answer

Honglei Chen
Honglei Chen on 18 Jun 2013
The data itself is saved in linear scale, not dB scale. It is only the plotting that displays the value in dB scale. You can try the following:
h = psd(spectrum.periodogram,randn(1024,1));
plot(h.Frequencies,h.Data);
This way the yaxis is in linear scale.

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