Weyl Spectral Analysis of Nonstationary Random Processes
نویسنده
چکیده
|We introduce the generalized evolutionary spectrum (GES) as a family of time-varying power spectra for nonstationary random processes. The GES extends the well-known evolutionary spectrum and the recently de ned transitory evolutionary spectrum. A particularly interesting member of the GES family is the novel Weyl spectrum. We discuss the properties of the Weyl spectrum, and we apply the Weyl spectrum to the analysis of cylinder pressure signals in car engines.
منابع مشابه
Generalized evolutionary spectral analysis and the Weyl spectrum of nonstationary random processes
|The evolutionary spectrum (ES) is a \time-varying power spectrum" of nonstationary random processes. Starting from an innovations system interpretation of the ES, we introduce the generalized evolutionary spectrum (GES) as a novel family of time-varying power spectra. The GES contains the ES and the recently introduced transitory evolutionary spectrum as special cases. We consider the problem ...
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