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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.
Author (s): Chen, Li; Pan, Keyu; Zhang, Zhaoqi; Feng, Xuelei; Shen, Yong
Affiliation:
Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Shenzhen Research Institute of Nanjing University, Shenzhen, China
(See document for exact affiliation information.)
Publication Date:
2021-03-06
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Permalink: https://aes2.org/publications/elibrary-page/?id=21026
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Chen, Li; Pan, Keyu; Zhang, Zhaoqi; Feng, Xuelei; Shen, Yong; 2021; Gradient Descent Method With Multiple Adaptive Step Sizes for Identifying Loudspeaker Nonlinearities [PDF]; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Shenzhen Research Institute of Nanjing University, Shenzhen, China; Paper ; Available from: https://aes2.org/publications/elibrary-page/?id=21026
Chen, Li; Pan, Keyu; Zhang, Zhaoqi; Feng, Xuelei; Shen, Yong; Gradient Descent Method With Multiple Adaptive Step Sizes for Identifying Loudspeaker Nonlinearities [PDF]; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Shenzhen Research Institute of Nanjing University, Shenzhen, China; Paper ; 2021 Available: https://aes2.org/publications/elibrary-page/?id=21026
@article{chen2021gradient,
author={chen li and pan keyu and zhang zhaoqi and feng xuelei and shen yong},
journal={journal of the audio engineering society},
title={gradient descent method with multiple adaptive step sizes for identifying loudspeaker nonlinearities},
year={2021},
volume={69},
issue={3},
pages={182-190},
month={march},}
TY – paper
TI – Gradient Descent Method With Multiple Adaptive Step Sizes for Identifying Loudspeaker Nonlinearities
SP – 182 EP – 190
AU – Chen, Li
AU – Pan, Keyu
AU – Zhang, Zhaoqi
AU – Feng, Xuelei
AU – Shen, Yong
PY – 2021
JO – Journal of the Audio Engineering Society
VO – 69
IS – 3
Y1 – March 2021