摘要
介绍一种基于适应控制理论和电子技术设计的能动噪声消除法。这种方法的控制系统由高速数字信号处理器DSP构成,控制算法由汇编语言和C语言实现。通过在一台农用拖拉机上实验证实,该系统能消除约18dB的噪声。
A theory based-on adaptive control and a method of active noise control (ANC) electronic technology are introduced.The ANC system is developed with a TMS320C25 high-speed digital processor (DSP),and the control algorithm is realized with the assemble and C languages.The experiment on a tractor shows that the maximum SPL(sound pressure level) is decreased approximately 18dB.
出处
《测控技术》
CSCD
2005年第7期40-41,45,共3页
Measurement & Control Technology
