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1/f noise generator using logarithmic and antilogarithmic amplifiers

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4 Author(s)
Murao, K. ; Dept. of Electr. Eng., Miyazaki Univ., Japan ; Kohda, T. ; Noda, K. ; Yanase, M.

A simple switched-capacitor circuit that generates 1/f δ noise is presented. The circuit realizes a discrete nonlinear one-dimensional map, that generates intermittent chaos with the 1/fδ power spectrum. An integrated circuit with a couple of logarithmic and antilogarithmic amplifiers is used to realize a nonlinear term xZ in the map, which plays a key role in generating 1/fδ noise

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Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on  (Volume:39 ,  Issue: 10 )