| 基于遗传算法的FIR可变分数延迟滤波器设计 |
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| 引用本文： | 蔡晓涛,高宏峰,卜祥强. 基于遗传算法的FIR可变分数延迟滤波器设计[J]. 通信技术, 2008, 41(12) |
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| 作者姓名： | 蔡晓涛 高宏峰 卜祥强 |
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| 作者单位： | 河南科技大学,电子信息工程学院,河南,洛阳,471003 |
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| 摘 要： | 分数延迟滤波器广泛用于语音处理,回声消除,多速率信号处理等方面.文中设计的FIR可变分数延迟滤波器用于解决全数字接收机的时钟同步问题.首先用传统的加权最小平方误差方法设计出滤波器参数,然后通过遗传算法对参数进行优化并通过matlab仿真验证算法的有效性,仿真结果表明所设计的滤波器有很好的幅度特性和相位延迟特性.
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| 关 键 词： | 遗传算法 全数字接收机 可变分数延迟滤波器 |
Design of FIR Variable Fractional Delay Filter Based on Genetic Algorithm |
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| CAI Xiao-tao,GAO Hong-feng,BU Xiang-qiang. Design of FIR Variable Fractional Delay Filter Based on Genetic Algorithm[J]. Communications Technology, 2008, 41(12) |
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| Authors: | CAI Xiao-tao GAO Hong-feng BU Xiang-qiang |
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| Affiliation: | CAI Xiao-tao,GAO Hong-feng,BU Xiang-qiang (Electronic Information Engineering College,Henan University of Science , Technology,Luoyang Henan 471003,China) |
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| Abstract: | Fractional delaly filters are widely applied in communications,speech processing,echo cancellation and multi-rate signal processing,etc.In this paper,the FIR variable fractional delay filter is designed and used to solve the problem of symbol synchronization of all digital receiver.Firstly,Weight Least-square method is used to design filter coefficients.Then the coefficients are optimized through genetic algorithm.The effectiveness of the proposed method is verified by Matlab simulation software.The result ... |
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| Keywords: | genetic algorithm all digital receiver variable fractional delay filter |
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