Far Field Noise Suppression Method in McWiLL Intercom Based on Double Uni-directional Microphone

被引：0
|
作者：
Zhang Yuhua [1 ]
Jia Limin [1 ]
Li Zhong [2 ]
机构：
[1] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing, Peoples R China
[2] Beijing Shouke Software & Syst Integrat Co Ltd, Beijing, Peoples R China
来源：
MANUFACTURING SYSTEMS AND INDUSTRY APPLICATIONS | 2011年 / 267卷
基金：
国家高技术研究发展计划(863计划);
关键词：
Far field noise suppression; Trunking communication; McWiLL; Noise reduction;
D O I：
10.4028/www.scientific.net/AMR.267.104
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To satisfy McWiLL communication requirement in noisy environment, a far field noise suppression method based on double uni-direction microphone in McWiLL intercom was studied. The method arranges two uni-direction microphones rationally and uses analog noise cancelling processor to accomplish surrounding noise reduction in McWiLL intercom in noisy environment. To verify validity of the method, several contrast experiments using diagnostic rhyme test method were done. Experiments results show that the far field noise suppression method based on double uni-direction microphone is effective for surrounding noise reduction.
引用
收藏
页码：104 / 108
页数：5
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