BLUE NOISE EFFECTS IN A NON-DYNAMICAL NEURAL MODEL SYSTEM
Abstract
Finite pulse width effects in level crossing detectors and similar systems, such as neurons, can yield an output noise that is, in the low frequency limit, a monotonically increasing function of the frequency. The phenomenon can well be observed at excitations with strong noise when the firing frequency is high. Blue noise effects have been observed in stochastically driven dynamical systems like harmonic oscillators. However it is surprising that it exists in a non-dynamical system like the level crossing detector.
An expanded version of the talk presented at the First SPIE Symposium "Fluctuation and Noise", entitled "Blue shot noise", at conference Noise and information in Nanoelectronics, Sensors, and Standards, Santa Fe, June, 2003; Proceedings of SPIE Vol. 5115 (2003).
