有源护耳器自适应辨识的实验研究  

Research on Adaptive Modeling Experiment for Active Ear Defender

作　　者：王峰林[1,2] 赵南霞[1,2] 孟娟 

机构地区：[1]哈尔滨市环境监测站 [2]哈尔滨工业大学机械工程系机械原理教研室

出　　处：《哈尔滨工业大学学报》1997年第5期115-118,共4页Journal of Harbin Institute of Technology

摘　　要：分析了反馈控制结构有源护耳器的控制原理及被控制对象，应用自适应ＩＩＲ滤波技术和高速ＤＳＰ处理器ＴＭＳ３２０Ｃ２５进行了辨识系统设计，在（２０－１５００Ｈｚ）宽频范围对有源护耳器的开环传递函数成功地进行了在线辨识研究，得到了开环系统的模型及参数，为进一步实施数字控制方法奠定了基础。Via analyzing the feedback control mechanism and controlling plant of the active ear defender, this paper applies the technique of adaptive IIR filtering and digital signal processor TMS320C25 to design a modeling system on line for the active ear defender Within the frequency of 20 to 1500Hz, the modeling test for the active ear defender was carried out and the electroacoustic system model and its parameters are acquired These results lay a foundation for designing a control method for the active ear defender

关 键 词：有源护耳器 自适应滤波 噪声控制 

分 类 号：TB535[理学—物理]