Spectral Kurtosis Theory-A Review through Simulations

Spectral Kurtosis Theory-A Review through Simulations

Venkata Krishna Rao M

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α Jawaharlal Nehru Technological University, Hyderabad

Spectral Kurtosis Theory-A Review through Simulations

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Abstract

Kurtosis of a time signal has been a popular tool for detecting nongaussianity. Recently, kurtosis as a function frequency defined in spectral domain has been successfully used in the fault detection of induction motors, machine bearings. A link between the nongaussianity and nonstationaity has been established through Wold-Cramer’s decomposition of a nonstationary signal, and the properties of the so-designated conditional nonstationary (CNS) process have been analytically obtained. As the nonstationary signals are abundantly found in music, the spectral kurtosis could find applications in audio processing e.g. music instrument classification and music-speech classification. In this paper, the theory of spectral kurtosis is briefly reviewed from the first principles and the spectral kurtosis properties of some popular stationary signals, nonstationary signals and mixed processes are analytically obtained. Extensive Monte Carlo simulations are carried out to support the theory.

References

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Venkata Krishna Rao M. 2015. \u201cSpectral Kurtosis Theory-A Review through Simulations\u201d. Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 15 (GJRE Volume 15 Issue F6): .

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GJRE Volume 15 Issue F6
Pg. 49- 61

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

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Classification

GJRE-F Classification: FOR Code: 090699

Submission ReceivedFebruary 11, 2015
Peer Review Double Blind
Handling Editor
Accepted March 4, 2015
Published March 15, 2015

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v1.2

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August 20, 2015

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Article Matrices

Total Score: 101

Country: India

Subject: Global Journal of Research in Engineering - F: Electrical & Electronic

Authors: Venkata Krishna Rao M (PhD/Dr. count: 0)

View Count (all-time): 249

Total Views (Real + Logic): 4407

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Publish Date: 2015 08, Thu

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Total Views: 4407

Total Downloads: 2132

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