In this paper, a structure and an adaptive algorithm of the fast convergence active noise control (ANC) system using sliding DFT (SDFT) are considered. The proposed method replaces the pseudo noise used as a dither signal in the conventional method with a white signal for the purpose of simplifying the system. The effectiveness of the proposed system was clarified by the proof of the stability of the adaptive algorithm and the verification of the convergence performance by computer simulation.
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