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Proceedings Paper

Higher-order spectra for harmonics detection in nonlinear systems at presence of Gaussian noise
Author(s): Janusz M. Smulko
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Paper Abstract

In this paper it is discussed the efficiency of harmonics detection in the precence of Gaussian noise by applying bispectrum function (higher-order spectrum). The proposed method is compared with the effectiveness obtained by the classical method that implements power spectrum density. The main results reported in this paper are, first, confirmation that the bispectrum function can reveal the harmonics overwelmed by Gaussian noise and, second, how this method is limited in practice. The details of the applied procedure are presented and discussed due to the random error of the bispectrum estimator and its method of calculation. The principles of the higher-order spectrum analysis are also pointed out.

Paper Details

Date Published: 23 May 2005
PDF: 7 pages
Proc. SPIE 5846, Noise and Information in Nanoelectronics, Sensors, and Standards III, (23 May 2005); doi: 10.1117/12.609601
Show Author Affiliations
Janusz M. Smulko, Gdansk Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 5846:
Noise and Information in Nanoelectronics, Sensors, and Standards III
Janos A. Bergou; Janusz M. Smulko; Mark I. Dykman; Lijun Wang, Editor(s)

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