주파수 추정기 기반 협대역 능동 소음 제어 시스템
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This paper discusses about a new structure for narrowband active noise control (ANC) system which incorporates a frequency estimator for minimizing the ill-effects of frequency mismatch that is defined as the frequency difference between the reference signal and the primary noise. It is desirable for the frequency estimator to have faster frequency tracking speed over the frequency changes of primary noise.