White noise

Spectrogram of pink noise (left) and white noise (right), shown with linear frequency axis (vertical).

In signal processing, white noise is a random signal with a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines, including physics, acoustic engineering, telecommunications, statistical forecasting, and many more. White noise refers to a statistical model for signals and signal sources, rather than to any specific signal.

单词	Random shock
释义	Random shock 原声例句乔布斯传 He prided himself on being a hardware engineer, which meant that random shocks were routine. 作为一名硬件工程师让他很自豪，但这也意味着触电是家常便饭。英语百科 White noise In signal processing, white noise is a random signal with a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines, including physics, acoustic engineering, telecommunications, statistical forecasting, and many more. White noise refers to a statistical model for signals and signal sources, rather than to any specific signal.
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Random shock

White noise