摘要
提出了一种基于二阶、三阶巴特沃兹滤波器传递函数的高阶滤波网络的优化综合方法 ,并给出了在实时提取汉语浊音基频中的应用实例 .实验结果表明用该方法实现高阶有源滤波网络 ,参数选择方便 ,性能稳定 ,在仪器仪表、工程测试。
This paper proposes a new optimum synthesis method of high order active filter network based on second order or third order Butterworth transfer function and presents an example of real time detection of foundamental pitch. The experimental results show that it is convenient in selecting parameters and the system based on this method has steady performance. This method is practical in instrument, engineering testing, signal processing and communication fields.
出处
《科技通报》
北大核心
2001年第2期53-58,共6页
Bulletin of Science and Technology
关键词
Butterworth传递函数
动态性能
阻尼系数
高阶滤波网络
优化综合
有源滤波网络
transfer function of Butterworth
dynamic property
damping ratio
high order filter network
optimum synthesis
real time detection of foundamental pitch
