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The paper presents a modified Welch power spectral density computation method that utilizes the Fast Fourier Transform (FFT) to improve computational efficiency.

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Abstract

Key findings

  • The proposed method reduces the computational complexity of the Welch method by utilizing the FFT to efficiently compute the power spectral density.
  • The modified method is shown to provide accurate results with a significant reduction in computational time compared to the traditional Welch method.
  • The paper demonstrates the applicability of the modified method to various signal processing applications, including audio and biomedical signal analysis.

Keywords

Spectral densityComputationDiscrete Fourier transform (general)Fourier transformFast Fourier transformPower (physics)

Identifiers

DOI
10.70729/ijser151016
Journal
International Journal of Scientific Engineering and Research
Year
2016