How to

Calculate Power spectral density (PSD) using ASI Datalab

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Power spectral density (PSD)

In simple word PSD represents the power of amplitude on Y axis for each frequency content in the signal.

Ax(f)=X(f)*X(f)

Quite often PSD is called as ASD (Auto Spectral density). It is because while converting from time domain to frequency domain, reference signal is same as response. If reference signal is not same it is called cross spectral density.

To Calculate Power spectral density (PSD) in ASI datalab following parameters are required as Input:

  • Required Frequency Spacing (Hz)
  • Data Window (Default: Hann)
    • Available Window Options
      •  Parzen
      • Bartlett
      • Hanning
      • Hamming
      • Kaiser
      • Flat Top
      • Blackman-Harris
  • Percentage Overlap (Default: 75%)
    • Available: 0%, 25%, 50% and 75%
  • Analysis Mode
    • Available Modes
      • Power Spectral Density
  • Use nearest spacing (Default: No)

Try it on ASI Datalab Now

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