Engineering Mechanics

International Conference

Proceedings Vol. 9 (2003)


May 11 – 15, 2003, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 80-86246-18-3 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Numerical integration and differentiation of sampled time signals by using FFT
Tůma J.
pages 352 - +10p., full text

The paper deals with differentiation and integration of sampled time signals in the frequency domain using the FFT and inverse FFT. The time signal integration in the time domain is replaced by division of the signal frequency spectrum by jtor in the frequency domain. Similarly the differentiation of time signals with respect to time is replaced by multiplication of the frequency spectrum by factor js the data are corrupted by noise some components of the frequency spectrum are filtered out.

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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.

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