发动机排气电子消声控制系统模拟实验设计

Design for the Simulation Experiment of the Electronic Muffling Control System of Engine Exhaust

摘要: 论述了有源噪声控制技术以及发动机有源消声电子实验台的设计和搭建等内容.重点阐述了有源消声电子实验台控制系统的声音信号的信号采集、回放,左右声道信号的分别控制,系统音量控制,以及通过计算机的串口与摩托罗拉单片机进行通讯的设计过程与实现方法.在有源消声电子实验台上用所设计的控制系统进行了有源消声的理论性实验,验证了工作台和控制系统的有效性.

Abstract: The technique of active noise control and the design and building of the experiment platform of active noise control are discussed. This thesis puts its emphasis on the control system of the experiment platform of active noise control and the implement of recording, playback, separate control of the two tracks and volume control. At the end of this thesis there is a theoretical experiment of active noise control, which has confirmed the efficiency of the platfom and its control system.