主动噪声控制
计算机科学
噪音(视频)
趋同(经济学)
自适应滤波器
降噪
路径(计算)
算法
滤波器(信号处理)
控制理论(社会学)
鉴定(生物学)
还原(数学)
分歧(语言学)
控制(管理)
数学
人工智能
哲学
几何学
计算机视觉
程序设计语言
经济
植物
图像(数学)
语言学
经济增长
生物
作者
Zhu Jie Feng,Tianran Lin,Cheng Li
出处
期刊:Journal of the Acoustical Society of America
[Acoustical Society of America]
日期:2023-12-01
卷期号:154 (6): 3851-3867
摘要
An adaptive variable step-size algorithm is proposed in this paper to address the impact of the real-time acoustic feedback and the real-time secondary path identification on the overall noise reduction performance of an active noise control system. An automated adjustment weight factor is introduced in the algorithm to accelerate the convergence of the acoustic feedback path as well as the secondary path identification, and to prevent possible system divergence. It is shown in this study that the proposed algorithm can resolve the trade-off between a fast convergence and a low misalignment of the virtual and the actual control paths typically found in conventional algorithms. An optimized control structure is also proposed in the study by enabling an adaptive gain adjustment based on the output of the auxiliary filter to enhance the practicality of the control system. The effectiveness of the algorithm is tested using two simulated multi-component signals and a broadband noise signal, and the results confirm that the proposed algorithm can achieve a good noise reduction with only a few iterations.
科研通智能强力驱动
Strongly Powered by AbleSci AI