改进型梳状滤波器的原理与实现  

The Principle & Realization of the Modified CIC Decimation Filter

作　　者：李众奇[1] 王宏远[1] 周娅[1] 

机构地区：[1]华中科技大学数字视频中心,武汉430074

出　　处：《无线通信技术》2007年第2期53-56,共4页Wireless Communication Technology

摘　　要：对CIC(Cascade of Integrators Comb)滤波器的改进,是在尽量不改变滤波器简易性的情况下,尽可能的改善滤波器的滤波效果,Gordana Jovanvic-Dolecek等人先后提出了不同的改进方法,通过锐化滤波器,相位分解等方法来改进滤波器性能。本文比较了相关的几种方法,并在此基础上提出一种改进的实现框图,采用此方法可以在改善滤波器性能的基础上,最大限度的减少资源消耗。The order of the Modified CIC Decimation Filter is to improve on performance of filtering based on not changing the simplicity of the CIC filter. Gordana JovanvicDolecekthe, etc. successively proposed different modified methods of sharpening, polyphase decomposition, etc. which are to improve the performance of the filters. This paper compares relative methods, furthermore proposes a modified realization scheme. This means may reduce consumed resource to a bare minimum based on improving the performance of the filter.

关 键 词：CIC 过采样 混叠失真 锐化 相位分解 

分 类 号：TN713.6[电子电信—电路与系统]