一种新的高速自适应滤波的脉动实现结构  

A NOVEL SYSTOLIC IMPLEMENTATION OF THE HIGH-SPEED ADAPTIVE FILTER

作　　者：尚勇[1] 吴顺君[2] 项海格[1] 

机构地区：[1]北京大学电子学系,北京100871 [2]西安电子科技大学雷达信号处理重点实验室,西安710071

出　　处：《电子与信息学报》2002年第8期1022-1027,共6页Journal of Electronics & Information Technology

摘　　要：LMS算法具有计算简单,易于实现的特点,被广泛应用于诸如通信和雷达等许多信号处理领域,对其高速实现结构的研究一直是滤波器结构设计中的一个研究重点和热点。该文基于并行流水线LMS(PIPLMS)算法,设计了一种高速自适应滤波器脉动结构。该结构既具有脉动结构的高度流水特性,又具有一定的并行性。与已有结构相比,该文设计的结构具有更高的数据吞吐率。同时由于其并行特性,该结构还具有更低的系统功耗,更大的步长因子选择范围和更快的收敛速度。The LMS algorithm is widely used in various signal processing fields such as radar, communication, etc. due to its simplicity. It is a focus in the research on the implementation of the high-speed adaptive filter. Based on the parallel pipelined LMS (PIPLMS) algorithm, a high-speed filter implementation is proposed in this paper. This implementation has both the properties of high pipelining in the systolic structure and parallelism in the parallel structure. At the same time, the implementation presented herein also has the properties of higher throughput rate, lower power consumption, larger step size range maintained convergence behavior and faster convergence speed.

关 键 词：并行流水线LMS算法 脉动阵 自适应滤波器 脉动结构 PIPLMS 

分 类 号：TN713[电子电信—电路与系统]