An improved estimation method of secondary path uncertainties for feedback active noise control earphones

作     者：Guo, Jianfeng Xun, Ziyou Ren, Zhenxing Yin, Lan Wang, Han 

作者机构：The College of Computer Science and Technology College of Data Science Taiyuan University of Technology Taiyuan030024 China The Key Laboratory of Noise and Vibration Research Institute of Acoustics Chinese Academy of Sciences Beijing100190 China 

出 版 物：《Noise Control Engineering Journal》 (Noise Control Eng J)

年 卷 期：2024年第72卷第3期

页      面：166-174页

核心收录：

学科分类：0711[理学-系统科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 070206[理学-声学] 0714[理学-统计学（可授理学、经济学学位）] 0811[工学-控制科学与工程] 0701[理学-数学] 0702[理学-物理学] 

基　　金：This work is supported by National Natural Science Foundation of China (grant no. 12204345 and 12304525) andNatural Science Foundation of Shanxi Province  China (grant no. 202103021223107 and 20210302123188) 

主　　题：Controllers 

摘      要：The fixed feedback control has been widely used for active noise-canceling earphones due to its simple structure and higher performance for low-frequency noise reduction. Although some disk-based models have been done to design robust controllers, they usually overestimate the uncertainty and thus limit noise reduction. In this article, we analyze the distribution of measured secondary paths and propose the tri-rectangle model to provide the uncertainty bound. The cascade biquad controllers are optimized by solving the multi-constrained optimization problem, with H2 performance criteria and H1 performance criteria and constraints of secondary path uncertainty and noise amplification. Simulation and experiment results show that the proposed tri-rectangle model provides a more accurate estimate of the uncertainty than disk-based models, and the designed controller achieves good noise attenuation with acceptable noise enhancement and strong stability. © 2024 Institute of Noise Control Engineering.