基于虚拟传递函数算法的有源头靠系统  

An active headrest system based on virtual transfer function

作　　者：吴文月 周亚丽[1] 张奇志[1] 

机构地区：[1]北京信息科技大学自动化学院,北京100192

出　　处：《北京信息科技大学学报（自然科学版）》2014年第6期51-55,共5页Journal of Beijing Information Science and Technology University

基　　金：国家自然科学基金资助项目(11172047);北京市属高等学校人才强教深化计划资助项目(PHR201106131)

摘　　要：有源头靠系统中,为了扩大头部的活动范围以及提高使用者的舒适度,在虚拟传声技术的基础上,利用FXLMS算法建立物理传声器与虚拟传声器之间的传递函数模型,可估计人耳附近的噪声信号。仿真结果表明,提出的方法能够估计出虚拟位置的噪声信号并有效衰减,在人耳处产生静音区域,与两阶段法相比有更好的降噪效果。In the active headrest system, in order to expand the range of activity of head and improve the comfort of the user, the transfer function model between the physical and virtual microphone is established according to the previous virtual microphone technique and the FXLMS algorithm, and the noise near the passengers＇ ears is estimated. The simulation results show that the method presented in this paper can estimate the noise signal of the virtual location and reduce the noise effectively, and generate a quiet zone at the human ears, which has better performance compared with the two-phase method.

关 键 词：有源噪声控制 头靠 虚拟传递函数 

分 类 号：TB535[理学—物理]