有源控制中通路建模模型研究

Studies on Path Modeling of Active Control

在有源控制通路建模或有源控制实现过程中,与FIR滤波器相比,虽然IIR滤波器具有诸多优点,但由于其对系统稳定性的不利影响及其工程实现的不易性,在实际通路建模时,更多地是使用FIR滤波器模型。重点研究使用FIR滤波器对包含零极点的通路传递函数进行建模时,传递函数极点位置变化对滤波器长度的影响以及极点个数对滤波器长度的影响。

Upon comparing the performance levels for FIR and IIR models in the path modeling of AC （Active Control） , people use the FIR models in most cases although IIR models have more advantages than FIR models,as IIR models have some disadvantages to the stabilities and it＇ s is not easy to the realization of AC. In this paper,effect of the location of poles on the length of FIR filter is studied when using FIR models in the path modeling.