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- Article name
- ALGORITHM FOR APPROXIMATING EXPERIMENTAL DATA BASED ON A LOW-PASS FILTER WITH A FINITE IMPULSE RESPONSE
- Authors
- Surin V. I., , VISurin@mephi.ru, National Nuclear University «MEPHI», Moscow, Russia
Volkova Z. S., , volkovazs@rambler.ru, National Research Nuclear University "MephI", Moscow, Russia
- Keywords
- discrete linear response function / spectral analysis of experimental data / FIR filter
- Year
- 2020 Issue 4 Pages 25 - 29
- Code EDN
- Code DOI
- Abstract
- An algorithm for applying sequential mathematical transformations using the discrete linear response function has been developed. The procedure for constructing spectral functions has a certain order and is aimed at obtaining adequate results of approximating the experimental sample in the frequency domain. It is shown that the use of the function of the low-frequency FIR filter as part of the convolution, together with the fast Fourier transform, gives positive results in the localization of a seed crack in steel EI847. The theoretical aspect of low-pass filters with a finite impulse response is considered and surface spectrograms are constructed for each considered stage of approximation.
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