피드백 경로를 갖는 시스템의 능동소음제어를 위한 노이즈 파워 스케줄링

Active noise control (ANC) with online feedback path modeling (OFPM) was reported under along with additive random noise condition. However, the additive random noise contributes to the residual output noise, and thus can degrade the noise control performance of ANC systems. This paper proposes a new noise power scheduling for ANC of a system with a feedback path Here, the OFPM along with a variable step-size (VSS) least-mean-square (LMS) algorithm is employed. Furthermore, the additive noise input power is adaptively controled depending on the convergence status of an ANC system. Finally, simulation results demonstrate the effectiveness of the proposed method.