Frequency-Domain Adaptive Filter Algorithm with Switching Step-Size

被引：0

作者：

Li, Zhiyuan ^{[1
]}

Yu, Yi ^{[1
,2
]}

Li, Ke ^{[1
,2
]}

He, Hongsen ^{[1
]}

de Lamare, R. C. ^{[3
]}

机构：

[1] Southwest Univ Sci & Technol, Sch Informat Engn, Mianyang 621010, Peoples R China

[2] Hydrogen Energy & Multienergy Complementary Microg, Mianyang 621000, Peoples R China

[3] CETUC, PUC Rio, BR-22451900 Rio De Janeiro, Brazil

来源：

CIRCUITS SYSTEMS AND SIGNAL PROCESSING | 2025年 / 44卷 / 01期

关键词：

Acoustic echo cancellation; Frequency-domain adaptive filter; Mean-square deviation; Switching step-size;

D O I：

10.1007/s00034-024-02853-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Frequency-domain adaptive filter (FDAF) algorithms have been widely used in many fields in virtue of its fast convergence and low computational complexity. However, FDAF algorithms with fixed step-size cannot balance convergence rate and steady-state misadjustment. In this paper, we propose the switching step-size based FDAF (SSS-FDAF) algorithm that selects the optimal step-size at each iteration for the FDAF update by comparing the mean-square deviation (MSD) trends with different step-sizes, to obtain fast convergence and low steady-state misadjustment at the same time. Furthermore, a novel reset strategy is designed for guaranteeing the tracking capability of the proposed algorithm. Computer simulations of colored signals and real-world signals have demonstrated the effectiveness of our algorithm.

引用

页码：513 / 533

页数：21

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