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.

Authors: Chen, Li; Pan, Keyu; Zhang, Zhaoqi; Feng, Xuelei; Shen, Yong
Affiliations: 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.)
JAES Volume 69 Issue 3 pp. 182-190; March 2021
Publication Date: March 9, 2021 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=21026

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD JAES69)   /jaes69/3/pg182.pdf

DOI: https://doi.org/10.17743/jaes.2020.0071

Start a discussion about this paper!