线性相位数字滤波器的设计

The Method of Design Digital Filter with Linear-phase Response

针对经典数字滤波器设计方法的缺陷进行了分析,提出了利用现代数字滤波器技术设计具有线性相位特性的无限脉冲响应IIR数字滤波器的设计方法,并给出了具体的实现方案。

With the defects of design classic digital filters analyzed at the beginning of the paper , the author suggests a new approach to design the infinite-impulse-response digital filters with linear phase response by the methods of modem digital filters designs and also an implementation of the filter is put forward as an example. Comparison of the advantages and disadvantages between the modem filter designs and classic filter designs is made at the end of the paper.