How to plot power spectrum density (db/hz) as a function of time ?

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Avik Das
Avik Das el 22 de Feb. de 2016
Respondida: Sai Charan Sampara el 30 de Jun. de 2022
I want to plot power spectral density F(time) of my signal. I can plot a spectogram but need help how to just plot the power spectral density as a function of time?

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Sai Charan Sampara
Sai Charan Sampara el 30 de Jun. de 2022
Power spectral density is a function of frequency. It gives the power distribution of a signal as a function of its frequency. The spectrogram contains the frequency components of the signal. The square of the absolute values of frequency components (spectrum values) gives power spectral density. Power is energy per unit time. So the power spectral density is only a function of frequency and does not have any relation to time.

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