Evaluation of Spectral Estimation Parameters for Direct Sampling FFT-Based Measuring Receivers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F24%3AN0000071" target="_blank" >RIV/00177016:_____/24:N0000071 - isvavai.cz</a>
Alternative codes found
RIV/00177016:_____/24:N0000096
Result on the web
<a href="https://ieeexplore.ieee.org/document/10502171" target="_blank" >https://ieeexplore.ieee.org/document/10502171</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/OJSP.2024.3389825" target="_blank" >10.1109/OJSP.2024.3389825</a>
Alternative languages
Result language
angličtina
Original language name
Evaluation of Spectral Estimation Parameters for Direct Sampling FFT-Based Measuring Receivers
Original language description
The standard CISPR 16-1-1 defines the measuring receiver using a black-box approach and sets requirements for its accuracy and spectral properties. Traditionally, such test receivers were developed using a superheterodyne architecture. Recently, time-domain electromagnetic emission measurement systems have been built employing direct sampling instruments, mainly oscilloscopes, and relying on specific signal processing to emulate the performance of compliant instruments. In these cases, the short-time Fourier transform is used for spectral estimation, but the corresponding electromagnetic compatibility standards lack details for its correct use with respect to parameters such as windowing function, overlapping factor, and frequency interpolation. Moreover, it is unclear which combination of spectral estimation parameters is best fit for this purpose. Obtaining reliable, consistent and low uncertainty spectral estimates of electromagnetic emissions measured in time-domain needs appropriate configuration and tuning of the signal processing algorithms. This paper investigates the error in the calculated spectrum for various reference signals: multitone, chirp pulses and rectangular pulses. The analysis is carried out for each CISPR band from A to D, that is, between 9 kHz and 1 GHz. After 489.6×1E3 iterations, distributed in 1700 different digital implementations of the CISPR 16-1-1 measuring receiver, the simulations outcomes point to certain sets of parameters that showed satisfactory performance overall, being the Nutall, Kaiser, and Parzen windows with more than 75% of overlapping and using interpolation factor higher than 5, generally suitable. Calibration results are used to experimentally verify that a valid set of parameters is adequate to fulfil CISPR 16-1-1 requirements.
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
<a href="/en/project/9B23004" target="_blank" >9B23004: Metrology for emerging electromagnetic compatibility standards</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Open Journal of Signal Processing
ISSN
2644-1322
e-ISSN
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Volume of the periodical
5
Issue of the periodical within the volume
16 April 2024
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
588-598
UT code for WoS article
001214501400001
EID of the result in the Scopus database
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