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  • physical significance of power spectral density

    pratap singh, upendra

    pratap singh, upendra

    @pratap-singh-6xlmve
    Updated: Oct 26, 2024
    Views: 1.3K
    What is the physical significance of power spectral density?

    If it represents power content in a given frequency, then its integration over frequency must give the 'total' power of the signal and not the 'average' power of the signal.

    Am I right when I say this?
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  • vishnu tej

    Member • May 29, 2015

    According to Nyquist rate, Carrier frequency must be greater than or equal to twice the message signal frequency.
    A one-sided PSD contains the total power of the signal in the frequency interval from DC to half of the Nyquist rate. A two-sided PSD contains the total power in the frequency interval from DC to the Nyquist rate.
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