How can I plot a spectrogram with dbV/sqrt(Hz) power scale?

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Samuel Pereira
Samuel Pereira il 24 Mag 2019
Hello, All!
I have a time domain signal and I want to plot its spectrogram using "spectrogram" Matlab command. However, the power unit must be dbV/sqrt(Hz) (this unit is, normally, used for plotting noise spectrogram). I took a look at Matlab "spectrogram" command help and I realize it plots the spectrogram with db/Hz. Do you have any idea about how I can change this unit? Any idea?
Thank you very much!
Sam

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