An Embedded Implementation of Discrete Zolotarev Transform Using Hardware-Software Codesign
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00347482" target="_blank" >RIV/68407700:21230/21:00347482 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.13164/re.2021.0364" target="_blank" >https://doi.org/10.13164/re.2021.0364</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13164/re.2021.0364" target="_blank" >10.13164/re.2021.0364</a>
Alternative languages
Result language
angličtina
Original language name
An Embedded Implementation of Discrete Zolotarev Transform Using Hardware-Software Codesign
Original language description
The Discrete Zolotarev Transform (DZT) brings an improvement in the field of spectral analysis of non-stationary signals. However, the transformation algorithm called Approximated Discrete Zolotarev Transform (ADZT) suffers from high computational complexity. The Short Time ADZT (STADZT) requires high segment length, 512 samples, and more, while high segment overlap to prevent information loss, 75 % at least. The STADZT requirements along with the ADZT algorithm computational complexity result in a rather high computational load. The algorithm computational complexity, behavior, and quantization error impacts are analyzed. We present a solution which deals with high computational load employing co-design methods targeting Field Programmable Gate Array (FPGA). The system is able to compute one-shot DZT spectrum 2 048 samples long in ~22ms. Real-time STADZT spectrum of a mono audio signal of 16 kHz sampling frequency can be computed with overlap of 91 %.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Radioengineering
ISSN
1210-2512
e-ISSN
1805-9600
Volume of the periodical
30
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
8
Pages from-to
364-371
UT code for WoS article
000719147800013
EID of the result in the Scopus database
2-s2.0-85108506975