基于LMS的多参考通道噪声抵消系统研究  

Research of Multi-Referenced Channel Noise Cancelling System Based on LMS Algorithm

作　　者：赵薇[1] 倪天颖 

机构地区：[1]中国传媒大学理工学部,北京100024

出　　处：《中国传媒大学学报（自然科学版）》2016年第5期20-24,共5页Journal of Communication University of China：Science and Technology

摘　　要：生活中存在的各种噪声严重影响着我们的生活质量,因此对于噪声的消除和抑制一直是一项重要的工作。本文在并行多参考通道降噪系统(PMCS)和矩阵多参考通道降噪系统(MCMS)基础上,提出了串行多参考通道降噪系统(SMCS),并针对两种混合噪声,利用三种多参考通道的方法进行仿真比较。仿真实验结果表明,这三种系统对均能有效的抑制噪声。相比之下,并行多参考通道降噪系统用时较多,而且降噪效果不如另外两种;矩阵多参考通道降噪系统所需设备简单并且具有较好的可扩展性;串行多参考通道降噪系统运行速度最快。The cancellation and suppression of the noises have been an important taskbecause various noi- ses existed in our daily life seriously affect our quality of life. On the basis of the parallel multi - refer- enced channel system （PMCS） and the matrix multi -referenced channel system （MMC）, a new series multi -referenced channel system（SMC） is proposed to enhance the noise cancellation performance. This paper aims at cancelling the mixture of two un - related noises and comparing simulation results of three different kinds of methods, which all based on multi - referenced channel algorithm. The simulation com- paring results show that all threesystems can reduce noises effectively. PMCS takes more time and has worse effect than others. MMCS needs less equipment and has better expansibility, while SMCS has advantage in the running speed.

关 键 词：LMS算法 串行多参考通道系统 并行多参考通道系统 矩阵多参考通道系统 

分 类 号：TN912[电子电信—通信与信息系统]