確率共鳴に基づく生体模倣型触覚センサの触知覚感度強化

抄録

Stochastic resonance is a phenomenon, in which a weak signal resonates with noise and improve the signal-noise ratio. It has been frequently observed in the natural world. In this study, inspired by stochastic resonance in the tactile sensation of organisms, we verify the effects of noise enhancing the sensitivity of the biomimetic tactile sensor. In this experiment, noise is applied through a vibration motor attached to a tactile sensor and discriminate ten types of sandpaper by using a support vector machine. As a result, the accuracy was improved more than twice by adding noise. Furthermore, the signal-noise ratio is also improved. It suggests the sensitivity was enhanced by stochastic resonance.