The Causes of Leakage Deviations from Sinc Function in DFT and Ways to Minimize Them
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F20%3A00556650" target="_blank" >RIV/60162694:G43__/20:00556650 - isvavai.cz</a>
Result on the web
<a href="http://aimt.unob.cz/vol15is2.htm" target="_blank" >http://aimt.unob.cz/vol15is2.htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3849/aimt.01375" target="_blank" >10.3849/aimt.01375</a>
Alternative languages
Result language
čeština
Original language name
The Causes of Leakage Deviations from Sinc Function in DFT and Ways to Minimize Them
Original language description
The article describes a new model for the solution of the instability problem of discrete Fourier transform (DFT) spectra leakage for the incoherent real sinusoidal signal for solving the most accurate estimation of its frequency. This paper shows this phenomenon by a new form of DFT spectrum expression. It consists mainly of the spectrum of the rectangular signal in the form of the sinc function, modulated to the frequency of the tested signal in baseband. To do this, analogous spectra from other neighboring bands formed by the sampling effect are added as aliasing. The analysis shows some ways to minimize or correct it. The paper shows a simpler and substantially lesser effect of aliasing in the DFT spectrum for a complex valued sinusoidal signal
Czech name
The Causes of Leakage Deviations from Sinc Function in DFT and Ways to Minimize Them
Czech description
The article describes a new model for the solution of the instability problem of discrete Fourier transform (DFT) spectra leakage for the incoherent real sinusoidal signal for solving the most accurate estimation of its frequency. This paper shows this phenomenon by a new form of DFT spectrum expression. It consists mainly of the spectrum of the rectangular signal in the form of the sinc function, modulated to the frequency of the tested signal in baseband. To do this, analogous spectra from other neighboring bands formed by the sampling effect are added as aliasing. The analysis shows some ways to minimize or correct it. The paper shows a simpler and substantially lesser effect of aliasing in the DFT spectrum for a complex valued sinusoidal signal
Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advances in Military Technology
ISSN
1802-2308
e-ISSN
2533-4123
Volume of the periodical
15
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
12
Pages from-to
317-328
UT code for WoS article
—
EID of the result in the Scopus database
2-s2.0-85097421740