定参数Butterworth滤波器的改进设计  

Improvement Design of Butterworth Filter with Parameter Certainties

作　　者：夏廷君[1] 朱东柏[1] 司昌健[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150040

出　　处：《黑龙江水专学报》2010年第2期113-115,共3页Journal of Heilongjiang Hydraulic Engineering College

摘　　要：针对Butterworth低通滤波器归一化后的传递函数动态性能指标的单一化,提出了可以根据需要改变其动态性能指标的低通滤波器。基于牛顿迭代法对Butterworth低通滤波器的极点的位置进行迭代计算,使重新分布极点的滤波器的传递函数动态性能指标满足设备的需求,并对改进后的低通滤波器进行阶跃响应分析。The dynamic performance indicators of the transfer function for Butterworth low-pass filter is a single,so this paper presents a low-pass filter which can change the dynamic performance indicators.The pole of Butterworth low-pass filter is re-distributed with Newton iteration,so that the dynamic performance indicators could be in accord with the demand for equipment,and carried on the step response analysis for improvement low-pass filter.

关 键 词：BUTTERWORTH滤波器 阶跃响应 极点 

分 类 号：TN713.4[电子电信—电路与系统]