工矿自动化2013，Vol.39Issue(9)：8-12,5.DOI:10.7526/j.issn.1671-251X.2013.09.003
强噪声环境下有源抗噪耳罩设计
Design of active anti-noise earmuffs in heavy noise environment
摘要
Abstract
In view of problems of expensive and inconvenient to wear of existing active anti-noise earmuffs,an active anti-noise earmuff in heavy noise environment was designed.The earmuff takes TMS320VC5509 as processor,and adopts adaptive noise cancellation method and the normalized least mean square algorithm to enhance adaptive noise cancellation performance.Combined with passive noise reduction technology,the earmuff realizes purpose of noise cancellation in heavy noise environment.The experimental results show that anti-noise performance of the earmuffs is up to 30 dB.关键词
抗噪耳罩/有源抗噪/被动降噪/自适应噪声抵消/归一化最小均方算法Key words
anti-noise earmuffs/ active anti-noise/ passive noise reduction/ adaptive noise cancellation/normalized least mean square algorithm分类
矿业与冶金引用本文复制引用
孙科伟,李建海,杨海东,宋博..强噪声环境下有源抗噪耳罩设计[J].工矿自动化,2013,39(9):8-12,5.基金项目
陕西省自然科学基础研究资助项目(2009JM8001-4) （2009JM8001-4）
航空科学基金资助项目(20095596014). （20095596014）
