About: Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain     Goto   Sponge   NotDistinct   Permalink

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  • 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.
  • 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. (en)
  • V elánku se rozebírá problematika analýzy nejistoty fáze a efektivní hodnoty signálu vypoetené z DFT spektra poi nekoherentním vzorkování a pou3ití kosinových oken. Analýza je zamioena na zkoumání vlivu kvantizaeního 1umu. (cs)
Title
  • Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain
  • Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain (en)
  • Analýza nejistoty fáze a efektivní hodnoty signálu poi nekoherentním vzorkování a pou3ití kosinových oken (cs)
skos:prefLabel
  • Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain
  • Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain (en)
  • Analýza nejistoty fáze a efektivní hodnoty signálu poi nekoherentním vzorkování a pou3ití kosinových oken (cs)
skos:notation
  • RIV/68407700:21230/05:03108370!RIV07-GA0-21230___
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  • P(GD102/05/H032), Z(MSM6840770015)
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  • RIV/68407700:21230/05:03108370
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  • DFT; RMS value; cosine window; frequency spectrum; phase; uncertainty analysis (en)
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  • [872BF457822B]
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  • Novotný, Martin
  • Slepička, David
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  • 0-7803-8880-1
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  • 21230
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