摘要
为改善前馈有源噪声控制系统中附加建模信号对系统降噪量的影响,提出了一种基于附加建模信号调控的有源噪声控制算法。该算法采用分段调控的方式处理附加建模信号:在建模前期,注入较大值的建模信号;在建模中期,随着系统趋于稳定,降低建模信号的能量;在建模后期,系统达到稳定状态,关闭附加建模信号通道,停止注入该信号。实验结果表明,相比现有降噪算法,改进的算法在降噪量和建模误差方面都有明显的改善。
In order to improve the impact of additional modeling signals on the system noise reduction in feedforward active noise control systems,an active noise control algorithm based on additional modeling signal regulation is proposed.This algorithm uses segmented regulation to process additional modeling signals:in the early stage of modeling,larger modeling signals are injected.In the middle stage of modeling,as the system tends to stabilize,the energy of the modeling signal is reduced.In the later stage of modeling,the system reaches a stable state,closes the additional modeling signal channel,and stops injecting the signal.The experimental results show that compared to existing noise reduction algorithms,the improved algorithm has significant improvements in both noise reduction and modeling errors.
作者
肖梦迪
XIAO Mengdi(Fuyang Preschool Teachers College,Fuyang,Anhui 236000,China)
出处
《计算机应用文摘》
2024年第13期141-143,149,共4页
Chinese Journal of Computer Application
基金
阜阳幼儿师范高等专科学校校级自然科学重点项目:有源噪声控制(ZK20220002)。
关键词
有源噪声控制系统
附加建模信号
分段调控
active noise control system
additional modeling signal
segmented regulation
