| 改进的高性能CIC抗混叠滤波器 |
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| 引用本文： | 皇甫文斌,朱江,王世练. 改进的高性能CIC抗混叠滤波器[J]. 通信技术, 2012, 45(7): 119-121 |
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| 作者姓名： | 皇甫文斌 朱江 王世练 |
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| 作者单位： | 国防科学技术大学电子科学与工程学院,湖南长沙,410073 |
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| 摘 要： | 这里对一种旋转锐化级联积分梳状滤波器(RSCIC,Rotated Sharpening Cascaded Integrator Comb Filter)进行了研究,RSCIC由锐化级联积分梳状滤波器(SCIC,Sharpening Cascaded Integrator CombFilter)和旋转内插滤波器(Rotated Sinc Filter)两部分构成。RSCIC可有效地提高传统积分梳状滤波器(CIC,Cascaded Integrator Comb Filter)的通带和阻带传输性能,特别适合采样率转化。仿真表明,在同等条件下,RSCIC滤波器的阻带衰减性能比传统的CIC滤波器提高了22 dB,通带抗衰减性能比传统的CIC滤波器提高了0.5 dB。
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| 关 键 词： | 采样率转换 积分梳状滤波器 锐化级联积分梳状滤波器 旋转内插滤波器 |
Improved High Performance CIC Filter |
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| HUANGFu Wen-bin , ZHU Jiang , WANG Shi-lian. Improved High Performance CIC Filter[J]. Communications Technology, 2012, 45(7): 119-121 |
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| Authors: | HUANGFu Wen-bin ZHU Jiang WANG Shi-lian |
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| Affiliation: | (School of Electronic Science and Engineering, National University of Defense Technology Changsha Hunan 410073, China) |
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| Abstract: | CIC（Cascaded Integrator Comb） commonly-used multistate filter. However, the filter, for its simple hardware, is a most large distortion of the pass-band and the attenuation of the stop-band limit its applications, a new cascade structure is studied and proposed. Simulation shows that the proposed structure could improves the stop-band attenuation by 30dB as compared with the traditional CIC Filter. The new structure is quite good in the sampling rate conversion. |
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| Keywords: | sample rate conversion CIC sharpening CIC rotating sharpening CIC |
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