| 基于X-滤波DCT/LMS算法的自适应逆消噪系统研究 |
| |
| 引用本文： | 马高印,王福忠. 基于X-滤波DCT/LMS算法的自适应逆消噪系统研究[J]. 煤矿机械, 2005, 0(2): 22-24 |
| |
| 作者姓名： | 马高印 王福忠 |
| |
| 作者单位： | 河南理工大学,电气工程学院,河南,焦作,454003;河南理工大学,电气工程学院,河南,焦作,454003 |
| |
| 摘 要： | 针对挖掘机和装载机等重型工程机械作业时发动机及液压泵振动产生的司机耳边强噪声 ,提出了一种基于自适应逆控制的消除方法。利用X -滤波DCT LMS算法构造控制器 ,使之驱动驾驶室内扬声器的输出声波具有与传播到驾驶室内的噪声相同的频率和振幅 ,且处于反相。当两声波相遇时 ,由于破坏性干扰作用 ,它们相互部分抵消 ,从而降低了司机耳边噪声
|
| 关 键 词： | 自适应逆控制 X-滤波 DCT/LMS算法 工程机械 噪声 |
| 文章编号： | 1003-0794(2005)02-0022-03 |
| 修稿时间： | 2004-10-25 |
The Study on Noise Eliminating System by Adaptive Inverse Control Based on X-Filtering and DCT/LMS Algorithm |
| |
| MA Gao_yin,WANG Fu_zhong. The Study on Noise Eliminating System by Adaptive Inverse Control Based on X-Filtering and DCT/LMS Algorithm[J]. Coal Mine Machinery, 2005, 0(2): 22-24 |
| |
| Authors: | MA Gao_yin WANG Fu_zhong |
| |
| Abstract: | A method is provided to eliminate the noise around driver's ears from heavy construction machinery such as grab and loading machinery caused by their powerful engine and hydraulic pump based on adaptive inverse control. A controller is constructed founded on X-filtering employing DCT/LMS algorithm to drive the loudhailer installed near the driving seat, whose output waves of the same frequency and magnitude with noise transmitted to the cab will counteract each other, due to so called destructive disturbing effect, by which reducing the noise partly around the motorman's ears. |
| |
| Keywords: | adaptive inverse control X-filter DCT/LMS algorithm construction machinery noise |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
