空间有源消声的微机控制  

Computer control of active noise control in space

作　　者：冯津伟[1] 杜学超[1] 沙家正[1] 

机构地区：[1]南京大学声学研究所,南京210093

出　　处：《应用声学》1997年第2期2-6,共5页Journal of Applied Acoustics

摘　　要：本文讨论用通用微机控制空间有源消声．以修正的PID（比例、积分、微分）算法加上逻辑判断构成的控制软件，使得系统收敛迅速，跟踪速度快，消声效果令人满意，而且系统工作稳定可靠，A method of active noise reduction in space applying a computer is discussed.The control software using modified PID algorithm and logical judgements makes the noise cancelling system converge rapidly and trace the reduction effect with a high speed.The system is practical to use because of its stability and satifying performance.

关 键 词：微机控制 有源消声 次级声源 消声器 

分 类 号：TB535.2[理学—物理]