Title:	A Novel Spectral Zoom Method based on Zolotarev Polynomials
Authors:	Kubák, Jan Sovka, Pavel
Citation:	2021 International Conference on Applied Electronics: Pilsen, 7th – 8th September 2021, Czech Republic, p. 89-93.
Issue Date:	2021
Publisher:	University of West Bohemia
Document type:	conferenceObject konferenční příspěvek
URI:	http://hdl.handle.net/11025/45572
ISBN:	978–80–261–0972–3 (Print) 978–80–261–0973–0 (Online)
ISSN:	1803–7232 (Print) 1805–9597 (Online)
Keywords:	diskrétní Zolotarevova transformace;symetrické Zolotarevovy polynomy;nestacionární spektrální transformace;aproximovaná diskrétní Zolotarevova transformace
Keywords in different language:	discrete Zolotarev transform;symmetrical Zolotarev polynomials;non-stationary spectral transform;approximated discrete Zolotarev transform
Abstract in different language:	This paper discusses the usage of symmet rical Zolotarev polynomials (ZPS)s in spectral analysis. Evaluation of Discrete Zolotarev transform (DZT) coeffi cients is briefly discussed. However, the DZT coefficients evaluation is problematic. An alternative novel method embedding ZPSs is proposed. The novel method, so-called DZT zoom, improves the spectrum’s time resolution for non-stationary signals compared to narrowband spectro gram. Results are comparable to the approximated DZT (ADZT). The DZT zoom distinguishing property is the focus on a particular frequency band of the spectrum.
Rights:	© University of West Bohemia, 2021
Appears in Collections:	Applied Electronics 2021 Applied Electronics 2021

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