ANC System Using Single Adaptive Filter with Adaptive Control Function of Dither Gain

In this paper an active noise control system using single adaptive filter with adaptive control of the dither gain is proposed. Using the observable signal, the evaluation function and the dither level are calculated independently. As a result, the dither level can be adaptively controlled relating to the evaluation function. Numerical verification of this adaptive algorithm was carried out by computer simulation of the estimation error and the dither level.