| DFT域全相位数字滤波器的设计与实现 |
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| 引用本文： | 苏飞,王兆华. DFT域全相位数字滤波器的设计与实现[J]. 信号处理, 2004, 20(3): 231-235 |
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| 作者姓名： | 苏飞 王兆华 |
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| 作者单位： | 天津大学电子信息工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金(No.60172062,No.60373028)，霍英东青年教师基金(No.81053)，留学归国人员科研启动基金 |
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| 摘 要： | 本文给出了一种带双窗的频域全相位数字滤波器结构,经过理推导得到与其等效三种实现形式。对系统特性的分析结果表明,双窗全相位数字滤波器在通带和阻带内的波纹基本消除并且可以方便地设计各种滤波器;最后通过仿真实验,验证了理论推导的正确性和全相位数字滤波器的实用性。
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| 关 键 词： | 加权重叠 全相位 线性相位 有限冲击响应 |
| 修稿时间： | 2003-05-16 |
Design And Implementation of All Phase Digital Filter in DFT Domain |
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| Su Fei,Wang Zhaohua Electronic Engineering School,Tianjin University,Tianjin. Design And Implementation of All Phase Digital Filter in DFT Domain[J]. Signal Processing(China), 2004, 20(3): 231-235 |
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| Authors: | Su Fei Wang Zhaohua Electronic Engineering School Tianjin University Tianjin |
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| Affiliation: | Su Fei,Wang Zhaohua Electronic Engineering School,Tianjin University,Tianjin 300072 |
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| Abstract: | In this paper a novel all phase digital filter with dual windows in frequency domain is presented, other threeequivalent structures of which are theoretically deduced out. By analysis of the properties of all phase digital filter, the resultsindicate that ripples across the pass and stop band are almost eliminated and such filter can be easily designed into all kinds offilters. Finally the experimental results prove both the validity and usefulness of all phase digital filter. |
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| Keywords: | weighted overlapping all phase linear phrase finite impulse response (FIR) |
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