I am using functions from the Analysis library to examine the frequency content of dynamic signals and am wondering whether I need to perform additional compensation on the output of these functions.
When computing the FFT, does it automatically compensate for sinc roll-off i.e. does it compensate for effects seen at higher frequencies (closer to the time-domain sampling frequency)? I am sampling at about 3kHz and displaying spectral values at (and up to) 1kHz and without compensation I believe the spectral results at 1kHz will be 1.67dB down.
Specifically, I am using the following methods:
SpectralMeasurement.Measurements.AutoPowerSpectrum()
SpectralMeasurement.Measurements.AmplitudePhaseSpectrum()
SpectralMeasurement.Measurements.SpectrumUnitConversion()
(after applying ScaledWindow functions).
CAS
