结构自适应滤波技术

Summary of Tap-Length Adaptation Algorithms

介绍结构自适应技术,对目前比较常见的结构自适应滤波算法进行概述,比较各种算法的优缺点。其中分数阶数结构自适应算法具有最快的收敛速度和最佳的稳定性,与分段滤波器算法和梯度下降算法相比分数阶数算法更易实现。指出目前结构自适技术中存在的问题和今后的发展方向。

This paper first introduces the structure-adaptation technology of the linear adaptive filter. Then, it summarizes the most widely used variable tap-length algorithms and points out their advantages and disadvantages. Among these algorithms, the FT algorithm has fastest convergence rate and most stable steady-state. In addition, it is easier to be implemented than the SF algorithm and GD algorithm. Finally, this paper points out the existing problems and the future focus.