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Cellular automata-based noise generator

✍ Scribed by I. Kokolakis; S. Koukopoulos; I. Andreadis; Y. Boutalis

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
331 KB
Volume
336
Category
Article
ISSN
0016-0032

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✦ Synopsis

A new noise generator using Cellular Automata (CA) is presented in this paper. Onedimensional linear CA produce pseudo-random binary sequences (PRBS) if they are exhaustive. Digital low-pass "ltering of the PRBS results in analog Gaussian noise with a spectrum that extends up to 5% of the PRBS frequency. The generator has been implemented using o!-theshelf HCMOS components and allows noise generation in the bandwidth [0}1 MHz]. Digitally generated noise possesses several advantages such as known spectrum and amplitude with adjustable bandwidth. Experimental results using the proposed technique are also presented.

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