一种基于RLS算法主动噪声控制系统的研究  

An active noise control system based on RLS arithmetic

作　　者：张维松[1] 常华[1] 刘珩[1] 

机构地区：[1]中国农业大学信息与电气工程学院,北京100083

出　　处：《中国农业大学学报》2004年第4期62-64,共3页Journal of China Agricultural University

摘　　要：为了改善单通道主动噪声FX LMS系统的噪声抵消性能 ,尤其是非平稳噪声的抵消性能 ,将基于QR分解的RLS算法应用于FX LMS系统中构成了FX QRLS系统。仿真结果表明 ,对粉红平稳噪声信号 ,该系统抵消效果较FX LMS系统提高了约 8dB ;对于在FX LMS系统中不收敛的非平稳噪声 ,也可以得到较好的抵消效果。A mono channel active noise control system based on inverse QR decomposed RLS algorithm was developed to improve the result for clearing steady or non steady noise of the system based on fx lms structure. According to the result of the simulation, the system based on inverse QR decomposed RLS has been incteased algorithm 8?dB better filtering result of band limited steady noise compared to that based on LMS algorithm and can deal with well non steady noise that having no result in the fx lms system. The ANC system based on QRLS could be used in real life.

关 键 词：主动噪声控制 自适应滤波器 RLS 

分 类 号：TN911.3[电子电信—通信与信息系统]