基于多DSP系统的并行延时LMS算法的实现  

PDLMS Algorithm Realization Based on Multi-DSP System

作　　者：姜莎[1] 田建生[1] 朱芳[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《计算机测量与控制》2006年第12期1695-1697,共3页Computer Measurement &Control

基　　金：国家"十五"计划资助项目(2001AA631050)

摘　　要：随着对信号处理要求的不断提高,基于AD公司21xx系列16位定点DSP中的ADSP-2181提出了一种具有很强适应性与灵活性的多DSP结构,同时介绍了基于FIR滤波器的自适应滤波算法,包括常规LMS算法,延时LMS算法,以及基于二输入二输出FIR滤波器的并行延时LMS算法,详细介绍了易于实现并行和流水线结构并行延时LMS算法,并将自适应滤波中的两大热点———自适应算法的研究与高速信号处理的实际工程相结合,重点研究了并行延时LMS算法在多DSP结构中的实现,体现了并行算法的优越性。Along with continuous advancement of the requirement for the speed of signal processing, it designs a multi-DSP system based on AD company＇s ADSP-2181 CMOS chip. At tht same time it introduces adaptive algorithm based on FIR filter, including normal LMS algorithm, delay LMS algorithm, and introduces parallel delay LMS algorithm based on two input and two output FIR filter, which is prone to realize the parallel and pipeline structure. It unites the research of adaptive algorithm with practical project of high speed digital processing, which are the two hot contention of adaptive filter. It researchs feasibility of PDLMS algorithm based on Multi--DSP System, which realizes the superiority of parellel algorithm.

关 键 词：并行延时最小均方算法 多DSP系统 自适应滤波 

分 类 号：TN911.72[电子电信—通信与信息系统]