Title :
A review of stochastic resonance: circuits and measurement
Author :
Harmer, Gregory P. ; Davis, Bruce R. ; Abbott, Derek
Author_Institution :
Dept. of Electr. & Electron. Eng., Adelaide Univ., SA, Australia
fDate :
4/1/2002 12:00:00 AM
Abstract :
Noise in dynamical systems is usually considered a nuisance. However, in certain nonlinear systems, including electronic circuits and biological sensory systems, the presence of noise can enhance the detection of weak signals. The phenomenon is termed stochastic resonance and is of great interest for electronic instrumentation. We review and investigate the stochastic resonance of several bistable circuits. A new type of S characteristic circuit is demonstrated using simple nonlinear elements with an operational amplifier. Using this circuit, the effects on stochastic resonance were determined as the slope of the S shaped characteristic curve was varied
Keywords :
analogue circuits; circuit bistability; circuit noise; circuit resonance; operational amplifiers; stochastic processes; S characteristic circuit; biological sensory systems; bistable circuits; electronic circuits; electronic instrumentation; level crossing circuits; nonlinear circuits; nonlinear elements; operational amplifier; stochastic resonance circuits; Biosensors; Bistable circuits; Circuit noise; Electronic circuits; Instruments; Nonlinear systems; Operational amplifiers; RLC circuits; Signal detection; Stochastic resonance;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
