Increase in the accuracy of evaluating spectra of discrete signal realization

被引：0

作者：

Len'kov, S. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Physiotech Inst, Moscow 117901, Russia

来源：

MEASUREMENT TECHNIQUES | 2007年 / 50卷 / 09期

关键词：

rapid Fourier transform; discrete signals and realization; spectrum;

D O I：

10.1007/s11018-007-0174-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An improved algorithm for calculating spectra with the use of a rapid Fourier transform and quadrature equations of the trapezium and Simpson's methods is considered. The relative error of calculation by comparing the relative deviation of a continuous spectrum of final realization of the signal from spectra, found by means of improved algorithms at a discrete set of frequencies, is analyzed. A more precise initial estimation of a spectrum is obtained using the improved calculation algorithms.

引用

页码：929 / 932

页数：4

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