| CIC 抽取滤波器的改进及其FPGA 的实现 |
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| 引用本文： | 郑 瑾,葛临东,李冰. CIC 抽取滤波器的改进及其FPGA 的实现[J]. 信息工程大学学报, 2006, 7(1): 57-59 |
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| 作者姓名： | 郑 瑾 葛临东 李冰 |
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| 作者单位： | 信息工程大学,信息工程学院,河南,郑州,450002 |
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| 摘 要： | 为补偿传统CIC滤波器的通带衰减,提出一种改进型的CIC抽取滤波器,即在SCIC滤波器之后级联一个二阶多项式内插滤波器。基于硬件实现的要求,给出改进型CIC滤波器的FPGA高效实现原理图。仿真结果表明改进的CIC滤波器具有更好的通阻带特性。
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| 关 键 词： | CIC 抽取滤波器 FPGA 多项式内插滤波器 |
| 文章编号： | 1671-0673（2006）01-0057-03 |
| 收稿时间： | 2005-09-02 |
| 修稿时间： | 2005-09-02 |
Modification of CIC Decimation Filter and Its FPGA Realization |
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| ZHENG Jin,GE Lin_dong,LI Bing. Modification of CIC Decimation Filter and Its FPGA Realization[J]. , 2006, 7(1): 57-59 |
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| Authors: | ZHENG Jin GE Lin_dong LI Bing |
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| Affiliation: | Institute of Information Engineering Information Engineering University,Zhengzhou ,450002 China |
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| Abstract: | For compensating the passband droop in traditional CIC filter,a modification of CIC decimation filter is proposed in this paper,which cascades an interpolated second_order polynomials filter after SCIC.Meanwhile,an efficient FPGA schematic diagram of this modified filter is also given,based on the requirement of hardware implement.Finally,simulation results verify that this modified CIC filter outperforms the conventional filter. |
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| Keywords: | CIC decimation filter FPGA polynomials interpolation filter |
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