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2. Noise generator - Wikipedia

   en.wikipedia.org/wiki/Noise_generator

   Zener diode based noise source. A noise generator is a circuit that produces electrical noise (i.e., a random signal). Noise generators are used to test signals for measuring noise figure, frequency response, and other parameters. Noise generators are also used for generating random numbers. [1]

3. Random.org - Wikipedia

   en.wikipedia.org/wiki/Random.org

   Random.org (stylized as RANDOM.ORG) is a website that produces random numbers based on atmospheric noise. [1] In addition to generating random numbers in a specified range and subject to a specified probability distribution, which is the most commonly done activity on the site, it has free tools to simulate events such as flipping coins, shuffling cards, and rolling dice.

4. List of noise topics - Wikipedia

   en.wikipedia.org/wiki/List_of_noise_topics

   Black noise; Blue noise; Burst noise; Carrier-to-receiver noise density; Channel noise level; Circuit noise level; Colors of noise; Comfort noise; Comfort noise generator; Cosmic noise; Crackling noise; DBa; DBrn; Decibel; Detection theory; Dither; Dynamic range; Effective input noise temperature; Environmental noise; Equivalent noise ...

5. White noise - Wikipedia

   en.wikipedia.org/wiki/White_noise

   A random vector (that is, a random variable with values in R n) is said to be a white noise vector or white random vector if its components each have a probability distribution with zero mean and finite variance, [clarification needed] and are statistically independent: that is, their joint probability distribution must be the product of the ...

6. Pseudorandom noise - Wikipedia

   en.wikipedia.org/wiki/Pseudorandom_noise

   A pseudo-noise code (PN code) or pseudo-random-noise code (PRN code) is one that has a spectrum similar to a random sequence of bits but is deterministically generated. The most commonly used sequences in direct-sequence spread spectrum systems are maximal length sequences, Gold codes, Kasami codes, and Barker codes.

7. Atmospheric noise - Wikipedia

   en.wikipedia.org/wiki/Atmospheric_noise

   Atmospheric noise and variation is also used to generate high quality random numbers. Unlike pseudorandom number generators (PRNGs), which use algorithms and are inherently deterministic, true random number generators (TRNGs) can derive randomness from physical phenomena. [9] RANDOM.ORG leverages atmospheric noise to generate truly random numbers.

8. Worley noise - Wikipedia

   en.wikipedia.org/wiki/Worley_noise

   Worley noise, also called Voronoi noise and cellular noise, is a noise function introduced by Steven Worley in 1996. Worley noise is an extension of the Voronoi diagram that outputs a real value at a given coordinate that corresponds to the Distance of the nth nearest seed (usually n=1) and the seeds are distributed evenly through the region.

9. Additive white Gaussian noise - Wikipedia

   en.wikipedia.org/wiki/Additive_white_Gaussian_noise

   Additive white Gaussian noise (AWGN) is a basic noise model used in information theory to mimic the effect of many random processes that occur in nature. The modifiers denote specific characteristics: Additive because it is added to any noise that might be intrinsic to the information system.