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一种改进的基于虚拟传声的有源头靠系统 被引量：1

Improved active headrest system based on virtual microphone control
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摘要 为了在人耳处获得更大范围的静音区,对基于虚拟传声的单通道有源头靠系统进行了改进。在静音区(人耳处)设置2个虚拟传声器,采用基于虚拟传声器技术的filtered-X least mean square(FXLMS)算法,控制目标区域内的残余误差信号,以实现对人耳处噪声信号的抑制,扩大静音区的范围。仿真结果表明,在静音区设置2个虚拟传声器可以有效降低静音区的噪声信号,并能扩大有源头靠的静音区范围。 In order to obtain a larger quiet zone at the human ear, the improved single-channel active headrest system based on virtual microphone control is presented. Two virtual microphones are positioned in the quiet zone. The FXLMS algorithm is used to control the residual error signal within the target area, thus significant attenuation of the noise signal and larger quiet zone at the human ear can be achieved. The simulation results show that setting two virtual microphones in the quiet zone can reduce the noisy signal in the quiet zone effectively, and expand the scope of the headrest＇s quiet zone.
作者 王丰 周亚丽 张奇志
机构地区 北京信息科技大学自动化学院
出处 《北京信息科技大学学报（自然科学版）》 2013年第5期15-18,共4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)
关键词 有源噪声控制 头靠 虚拟传声器 FXLMS(filtered—X least mean square)算法 active noise control headrest virtual microphone FXLMS （filtered-X least meansquare） algorithm
分类号 TB535.2 [理学—声学]
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参考文献13

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共引文献22

同被引文献11

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  • 5Debi Prasad Das,Danielle J Moreau,Ben Cazzolato.Performance evaluation of an active headrest using the remote microphone technique[C]//Proceedings of the Annual Conference on the Australian Acoustical society(Acoustics 2011),held on the Gold Coast,Australia,2011:69-76
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  • 10江伟,张奇志,周亚丽.虚拟传感器在有源头靠系统的应用[J].电声技术,2009,33(6):73-77. 被引量：2

引证文献1

北京信息科技大学学报（自然科学版）
2013年 第5期

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