Analyzing Chaotic Spectra of DC–DC Converters Using the Prony Method

Author

Li, Hong ; Li, Zhong ; Halang, Wolfgang A. ; Zhang, Bo ; Chen, Guanrong

Author_Institution

Dept. of Math. & Comput. Sci., Fern Univ., Hagen

Volume

54

Issue

1

fYear

2007

Firstpage

61

Lastpage

65

Abstract

When dc-dc converters operate in chaotic modes, they can generate spread spectra, which are useful for reducing the electromagnetic interference (EMI). Conventionally, the Fast Fourier Transform (FFT) is used to analyze the spectra. However, it is not applicable to the inner-harmonics, the nonintegral multiples of the fundamental frequency, which is a prominent feature of chaotic signals. In this brief, the Prony method is suggested for chaotic spectral estimation of dc-dc converters. Numerical simulations show its advantages over the traditional FFT

Keywords

DC-DC power convertors; chaos; spectral analysis; DC-DC converters; Prony method; chaotic modes; chaotic signals; chaotic spectral estimation; electromagnetic interference; fast Fourier transform; Chaos; Chaotic communication; Damping; Electromagnetic compatibility; Electromagnetic interference; Fast Fourier transforms; Frequency estimation; Numerical simulation; Sampling methods; Signal resolution; Chaos; Prony method; dc–dc converters; fast Fourier transform (FFT); spectral estimation;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2006.883100

Filename

4063473