摘要
设计并实现了一种单通道有源前馈噪声控制系统.在TMS320VC5416 DSK、音频子板和扬声器等组成的硬件平台上,采用LMS算法实现次级通路辨识,采用Filtered-X LMS算法实现空间有源噪声控制.文中阐述了次级通路辨识和噪声控制的结构模型、原理与算法流程,介绍了硬件系统平台和软件设计,并给出了实验结果.
A single-channel feedforward active noise control system is designed and implemented in this paper. Based on the hardware plat-form consisting of TMS320VC5416 DSK, audio daughter-card and loudspeaker, etc, identification of secondary path is implemented with LMS algorithm, and active noise control in space is implemented with Filtered-X LMS algorithm. This text presents the structure model, principle and algorithm process of secondary path identification and noise control. It also describes the design of hardware plat-form and software, and gives out the experimental results.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第4期842-846,共5页
Journal of Sichuan University(Natural Science Edition)
