Default output for ps in the spectrogram function

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John Hunt
John Hunt 2023-12-8
评论： John Hunt 2023-12-11
The matlab spectrogram function one of the outputs is "ps".
In the documentation it states
"[___,ps] = spectrogram(___,spectrumtype) also returns a matrix, ps, proportional to the spectrogram of x.
  • If you specify spectrumtype as "psd", each column of ps contains an estimate of the power spectral density (PSD) of a windowed segment.
  • If you specify spectrumtype as "power", each column of ps contains an estimate of the power spectrum of a windowed segment
"
What is the default of ps? PSD or power spectrum?
Thanks
  2 个评论
Paul
Paul 2023-12-8
编辑：Paul 2023-12-9
Hi John,
Click on the spectrumtype link in the question. The documentation always (AFAIK) specifies the default values of optional input arguments.
John Hunt
John Hunt 2023-12-11
Thank you Paul, you are exactly right. The default is psd.

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Star Strider
Star Strider 2023-12-8
Apparently the default for spectrumtype is 'psd'. At least that’s how I read it.

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