학술논문
Fourier series expansion and DFT on a moving window
Document Type
Conference
Author
Source
[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE. :363-367 vol.1 1990
Subject
Language
Abstract
The recursive calculation of Fourier series spectra and the discrete Fourier transform (DFT) on a moving window is investigated. The basic problem is to calculate the spectra coefficients on a one-step-shifted-to-the-right window using the old coefficient values. Several formulas are presented giving the adaptation law of the time-varying spectra. The development in Fourier series expansion can be extended to the case of orthogonal polynomial series.ETX