过渡过程对管道主动降噪控制系统性能影响的研究  

Research on Effect of Transient Process on Performance of Pipeline Active Noise Reduction Control System

作　　者：段龙毅 周静雷[1] DUAN Longyi;ZHOU Jinglei(College of Electronic Information Engineering,Xi′an Polytechnic University,Xi′an,Shaanxi 710600,China)

机构地区：[1]西安工程大学电子信息学院,陕西西安710600

出　　处：《自动化应用》2025年第3期39-43,共5页Automation Application

摘　　要：在有源噪声控制系统中,过渡过程会对管道主动降噪控制产生较大影响,特别是在次级通路的估计中,次级通路估计的准确性将直接影响降噪性能。长管道中的过渡时间较长,系统需消除其不利影响。为此,建立管道有源降噪的物理模型,通过施罗德积分计算冲击响应的过渡时间,分析了过渡时间与次级通路估计的关系,并通过实验验证了结果,确定了过渡过程时间与降噪性能之间的关系。为保证降噪性能的最优,需合理设定测量次级通路的延迟时间,以保障次级通路估计的准确性。In the active noise control system,the transition process will have a great impact on the pipeline active noise reduction control,especially in the estimation of secondary path,the accuracy of secondary path estimation will directly affect the noise reduction performance.The transition time in the long pipeline is long,and the system needs to eliminate its adverse effects.Therefore,the physical model of pipeline active noise reduction is established,and the transition time of impact response is calculated by Schroeder integral.The relationship between transition time and secondary path estimation is analyzed.The results are verified by experiments,and the relationship between transition time and noise reduction performance is determined.In order to ensure the optimal noise reduction performance,it is necessary to reasonably set the delay time of the secondary path to ensure the accuracy of the secondary path estimation.

关 键 词：有源噪声控制 过渡过程 施罗德积分 

分 类 号：TN912.21[电子电信—通信与信息系统]