Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F05%3A03108370" target="_blank" >RIV/68407700:21230/05:03108370 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain
Original language description
The determination of phase and RMS value belongs to the most important tasks of signal analysis in the frequency domain. Evaluating these parameters is frequently performed by the DFT (Discrete Fourier Transform) algorithm. In practice, signals are mostly sampled non-coherently. This leads to the well known effect called leakage, which results in spreading frequency spectral component energy to neighboring frequency lines. Therefore, time windows are used for leakage suppression. This paper introduces the problematic of uncertainty analysis of phase and RMS value computed from the DFT spectrum by non-coherent sampling using cosine windows. The analysis is aimed to investigate the influence of quantization noise.
Czech name
Analýza nejistoty fáze a efektivní hodnoty signálu při nekoherentním vzorkování a použití kosinových oken
Czech description
V článku se rozebírá problematika analýzy nejistoty fáze a efektivní hodnoty signálu vypočtené z DFT spektra při nekoherentním vzorkování a použití kosinových oken. Analýza je zaměřena na zkoumání vlivu kvantizačního šumu.
Classification
Type
A - Audiovisual production
CEP classification
JA - Electronics and optoelectronics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GD102%2F05%2FH032" target="_blank" >GD102/05/H032: Research, development and optimisation of measuring systems and measurement uncertainty estimation by their application</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
ISBN
0-7803-8880-1
Place of publication
Ottawa
Publisher/client name
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Version
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Carrier ID
neuvedeno