Gradient descent method with multiple adaptive step sizes for identifying loudspeaker nonlinearities

被引：0
|
作者：
Chen L. [1 ]
Pan K. [1 ]
Zhang Z. [1 ]
Feng X. [1 ]
Shen Y. [1 ,2 ]
机构：
[1] Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing
[2] Shenzhen Research Institute of Nanjing University, Shenzhen
来源：
AES: Journal of the Audio Engineering Society | 2021年 / 69卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Gradient methods;
D O I：
10.17743/JAES.2020.0071
中图分类号：
学科分类号：
摘要：
An improved gradient descent method with multiple variable step sizes for identifying nonlinear parameters of moving-coil loudspeakers is proposed. This method monitors parameters trends during identification and adaptively multiplies or attenuates corresponding step sizes, eliminating the need for manual adjustments. Simulations and experiments reveal that it is as accurate as the fixed step size method and more efficient and robust against initial linear parameter errors. © 2021 Audio Engineering Society. All rights reserved.
引用
收藏
页码：182 / 190
页数：8
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