| 基于循环缓冲区FIR滤波器的设计 |
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| 引用本文： | 闻辉,刘益成,杨杏本.基于循环缓冲区FIR滤波器的设计[J].通信技术,2009,42(11):233-234. |
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| 作者姓名： | 闻辉 刘益成 杨杏本 |
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| 作者单位： | 湖北师范学院教育信息与技术学院,湖北,黄石,435002 |
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| 基金项目： | 湖北师范学院校级创新团队基金资助项目 |
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| 摘 要： | 数字滤波技术主要包括滤波器设计及滤波过程的实现两方面内容。文中阐述了FIR滤波器基本结构,结合实例用Matlab来确定FIR滤波器系数,分析了循环缓冲区算法原理。在该算法的基础上,结合设计的滤波器实现对输入混合信号的FIR数字滤波,最后给出了滤波前后输入输出信号波形仿真。
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| 关 键 词： | DSP 循环缓冲区 Matlab FIR滤波 |
Circular buffer based on the design of FIR filters |
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| WEN Hui,LIU Yi-cheng,YANG Xing-ben.Circular buffer based on the design of FIR filters[J].Communications Technology,2009,42(11):233-234. |
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| Authors: | WEN Hui LIU Yi-cheng YANG Xing-ben |
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| Affiliation: | (College of Education Information and Technology, Hubei Normal University, Huangshi Hubei 435002, China) |
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| Abstract: | The digital filter technology includes two contents, that is, the filter design and filter implementation. This article discusses the basic structure of FIR filter, and with examples, the determination of FIRfiltercoefficient by Matlab, analyzes the principle of cyclic buffer zone algorithm. Based on this algorithm and combined with the designed filter, FIR digital filtering of the input mixed signal is achieved. Finally, the waveform simulation of input and output signal before and after filtering is given. |
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| Keywords: | DSP Matlab |
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