Title :
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
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;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2006.883100
