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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

  • DOI - Digital Object Identifier

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

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

  • Version

  • Carrier ID

    neuvedeno