双处理器多通道有源消声系统的设计与试验  

Design and experiment of multiple channel active noise control system based on dual DSP

作　　者：张晓宇[1] 

机构地区：[1]重庆理工大学重庆汽车学院,重庆400039

出　　处：《机械设计》2012年第8期15-18,共4页Journal of Machine Design

摘　　要：多通道有源消声系统随着通道数的增加运算量会大幅增加,严重时系统不能正常工作。针对此局限性设计了双数字信号处理器结构的控制器,通过2个处理器并行工作,增强了系统的实时运算能力,可以满足多通道有源消声系统对处理器计算能力较高的要求。试验结果表明,双处理器结构的有源消声系统是可行和有效的。The computing load of the system increases with the increase in number of channels of a multi-channel active noise control system, even causing the system not to operate normally in severe ca- ses. To overcome this limitation, a controller with dual DSP is presen- ted. Due to the concurrent working of two DSP, the real time calcula- tion capability of the system is enhanced, meeting the requirements of mttlti-channel active noise control system for much higher computing capability. The experimental results verify that the active noise control system with two DSP structure is feasible and effective.

关 键 词：噪声 有源噪声控制 自适应滤波器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]