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NPVSS-NLMS 알·고리즘과 온라인 선형 피드백 경로 모델링을 이용한 비선형 능동 소음 제어
서재범(Jae-Beom Seo),남상원(Sang-Won Nam) 대한전기학회 2010 전기학회논문지 Vol.59 No.5
Acoustic feedback and background noise variation can degrade the performance of an active noise control (ANC) system. In this paper, nonlinear ANC using a non-parametric VSS-NLMS (or NPVSS-NLMS) algorithm and online feedback path modeling is proposed, whereby the conventional linear ANC with online acoustic feedback-path modeling is further extended to nonlinear Volterra ANC with a linear acoustic feedback path. In particular, the step-size of the NPVSS-NLMS algorithm is controlled to reduce the effect of background noise variation in the ANC system. Simulation results demonstrate that the proposed approach yields better nonlinear ANC performance compared with the conventional nonlinear ANC method.
GS-FAP 알고리즘 적용한 2차 볼테라 시스템의 능동 소음 제거
서재범(Jae-Beom Seo),김경재(Kyoung-Jae Kim),남상원(Sang-Won Nam) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.4
In this paper, a Gauss-Seidel fast affine projection (GS-FAP) algorithm developed for the linear active noise control (ANC) is further utilized for nonlinear ANC of a 2nd-order Volterra systems with a nonlinear primary path and a noisy secondary path. The simulation results, obtained by applying adaptive Volterra filtering, show that the proposed approach yields more stable and faster nonlinear ANC, compared with the conventional methods for the nonlinear ANC in case of noisy plant models.
음향 피드백 및 배경 잡음 환경에 강인한 비선형 능동소음제어 시스템
서재범(Jae-Beom Seo),김경재(Kyoung-Jae Kim),박경민(Kyoung-Min Park),김정희(Jeoung-Hee Kim),남상원(Sang-Won Nam) 대한전기학회 2009 정보 및 제어 심포지엄 논문집 Vol.2009 No.10
In this paper, nonlinear active noise control (ANC) of a 3rd-order Volterra system with acoustic feedback and background noise variation is proposed, where a nonparametric variable step-size NLMS (NPVSS-NLMS) algorithm is utilized. Simulation results demonstrate that the proposed approach yields better nonlinear ANC performance in a background noise environment, compared with conventional nonlinear ANC methods.
3차 볼테라 필터링과 VSSGS-PAP 알고리즘을 이용한 배경잡음 변화에 강인한 비선형 능동소음제어 시스템
서재범(Jae-Beom Seo),김경재(Kyoung-Jae Kim),남상원(Sang-Won Nam) 대한전기학회 2009 정보 및 제어 심포지엄 논문집 Vol.2009 No.5
In this paper, nonlinear active noise control (ANC) of a 3rd-order Volterra system, which is robust to background noise variation, is proposed along with a variable step-size Gauss-Seidel pseudo affine projection (VSSGS-PAP) algorithm. Simulation results demonstrate that the proposed approach yields better nonlinear ANC performance in a background noise variation environment, compared with the conventional methods for the nonlinear ANC.