Energy Density Spectrum
Energy Density Spectrum :
Sometimes called energy spectrum: The square of the amplitude of the (complex) Fourier transform of an aperiodic function. Thus, if f(t) is the given function, its Fourier transform is F(a)) = ±- fit^-*" dt in J and the energy density spectrum is IF(aj)2 It is assumed that the total energy is finite. See power spectrum
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