About: White noise

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Random signal having equal intensity at different frequencies, giving it a constant power spectral density

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dbo:description
  • Señal eléctrica cuyo contenido espectral de potencia es plano en toda una gama amplia de frecuencias. (es)
  • náhodný signál s rovnoměrně rozloženou spektrální hustotou (cs)
  • notion d'acoustique (fr)
  • rodzaj szumu akustycznego (pl)
  • stochastisches Rauschen zum Maskieren von Lärm (de)
  • random signal having equal intensity at different frequencies, giving it a constant power spectral density (en)
  • стационарный шум (ru)
  • מושג בהנדסה ועיבוד אותות (iw)
  • نوعی سیگنال (fa)
  • 全周波数で均一な大きさを持つ雑音 (ja)
  • 隨機訊號 (zh)
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dbp:date
  • October 2023 (en)
dbp:reason
  • Why? (en)
  • Why aren't the W required to be statistically independent, as for the finite-component white noise of the last section? (en)
  • Why aren't the variances required to be identical, like in the Gaussian case and the discrete-time case ? (en)
  • Correlation can only take on values in [0,1], so N must be 1 and delta must take the value 1 for t_1 = t_2; it is not the dirac measure here. However, all these concepts are fishy. (en)
  • Since the definition proposed in this section is not remotely workable in a mathematical sense, I doubt that any authors do this. Instead, we are looking at a heuristic only. (en)
  • The *expectation value* of the mean is zero. And this is not a problem. (en)
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dct:subject
gold:hypernym
rdfs:label
  • White noise (en)
  • ضجيج أبيض (ar)
  • Soroll blanc (ca)
  • Bílý šum (cs)
  • Weißes Rauschen (de)
  • Blanka bruo (eo)
  • Zarata zuri (eu)
  • Ruido blanco (es)
  • Bruit blanc (fr)
  • Rumore bianco (it)
  • ホワイトノイズ (ja)
  • 백색 소음 (ko)
  • Witte ruis (nl)
  • Szum biały (pl)
  • Ruído branco (pt)
  • Белый шум (ru)
  • Vitt brus (sv)
  • Білий шум (uk)
  • 白雜訊 (zh)
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