| 改进型CIC抽取滤波器的研究与设计 |
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| 引用本文： | 张茂磊,栾晓明,徐向斌.改进型CIC抽取滤波器的研究与设计[J].应用科技,2011,38(2):18-21. |
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| 作者姓名： | 张茂磊 栾晓明 徐向斌 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 由于CIC（级联积分梳状）滤波器不需要乘法运算和存储系数,因此实现非常简单,在采样率变换过程中经常使用CIC滤波器进行数字滤波.在CIC滤波器概念的基础上,提出了基于正弦函数的补偿滤波器与基于锐化技术的改进型CIC滤波器,补偿滤波器与锐化技术二者用来改善CIC滤波器的通带与阻带特性.通过对CIC滤波器及其改进型的综合性能进行对比体现出所设计滤波器的优点.
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| 关 键 词： | 采样率变换 CIC抽取滤波器 补偿滤波器 锐化技术 |
Research and design on the improved CIC decimation filter |
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| ZHANG Maolei,LUAN Xiaoming,XU Xiangbin.Research and design on the improved CIC decimation filter[J].Applied Science and Technology,2011,38(2):18-21. |
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| Authors: | ZHANG Maolei LUAN Xiaoming XU Xiangbin |
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| Institution: | ZHANG Maolei,LUAN Xiaoming,XU Xiangbin (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | CIC(cascaded integrator comb) filter is often used in the process of the sampling rate conversion for finishing the digital filter due to its simplicity which requires no multiplication or coefficient storage.Based on the introduction to the concept of CIC filter,a compensation filter which was based on the sine function and an improved CIC filter which was based on the sharpening technique were proposed in this paper.Both of compensation filter and sharpening technique can be used for improving the charact... |
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| Keywords: | sampling rate conversion CIC decimation filter compensation filter sharpening technique |
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