White noise
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In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The term is used with this or similar meanings in man
Spectrogram of pink noise (left) and white noise (right), shown with linear frequency axis (vertical) versus time axis (horizontal)
Gaussian noise
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In signal processing theory, Gaussian noise, named after Carl Friedrich Gauss, is a kind of signal noise that has a probability density function equal to that of the normal distribution. In other word
White noise
…uncorrelated. Noise having a continuous distribution, such as a normal distribution, can of course be white. It is often incorrectly assumed that Gaussian noise (i.e., noise with a Gaussian amplitude distribution – see normal distribution) necessarily refers to white noise, yet neither property implies the…
Without noise
With Gaussian noise