傅里叶级数展开和移动窗口上的DFT

[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society Pub Date : 1990-11-27 DOI:10.1109/IECON.1990.149166

L. Homssi, A. Despujols

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引用次数: 1

摘要

研究了傅里叶级数谱的递推计算和移动窗口上的离散傅里叶变换。基本问题是利用旧系数值计算向右移一步窗口上的光谱系数。给出了时变光谱自适应规律的几个公式。傅里叶级数展开式的发展可以推广到正交多项式级数的情况。

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Fourier series expansion and DFT on a moving window

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.<>

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来源期刊

[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society

CiteScore

1.40

自引率

0.00%

发文量