| 基于正交小波包变换的判决反馈盲均衡算法 |
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| 引用本文： | 郭业才,杨超.基于正交小波包变换的判决反馈盲均衡算法[J].系统仿真学报,2010,22(3). |
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| 作者姓名： | 郭业才 杨超 |
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| 作者单位： | 1. 南京信息工程大学电子与信息工程学院,南京,210044;安徽理工大学电气与信息工程学院,淮南,232001
2. 安徽理工大学电气与信息工程学院,淮南,232001 |
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| 基金项目： | 全国博士论文作者专项基金(200753); 江苏省高等学校自然科学基金(08KJB510010); 江苏省“六大人才高峰”培养对象资助(2008026); 江苏省自然科学基金(BK2009410); 南京信息工程大学科研机构和创新团队(2009)(JG0803,TD0810) |
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| 摘 要： | 针对严重线性失真的水声信道,在分析正交小波包变换理论和判决反馈盲均衡算法的基础上,利用正交小波包变换良好的去相关性特性,对判决反馈盲均衡算法的前馈滤波器权向量进行修正,提出了基于正交小波包变换的判决反馈盲均衡算法(WPT-DFE)。与基于正交小波变换的判决反馈盲均衡算法(WT-DFE)和常规判决反馈盲均衡算法(CMA-DFE)相比,该算法具有收敛速度快、跟踪性能好、稳态误差小的特点。水声信道的仿真结果,验证了算法的有效性。
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| 关 键 词： | 正交小波包变换 判决反馈 盲均衡 水声信道 |
Decision Feedback Blind Equalization Algorithm Based on Orthogonal Wavelet Packet Transform |
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| GUO Ye-cai,YANG Chao.Decision Feedback Blind Equalization Algorithm Based on Orthogonal Wavelet Packet Transform[J].Journal of System Simulation,2010,22(3). |
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| Authors: | GUO Ye-cai YANG Chao |
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| Institution: | GUO Ye-cai1,2,YANG Chao2 (1. College of Electric , Information Engineering,Nanjing University of Information Science , Technology,Nanjing 210044,China,2. Department of Electrical Engineering , Information,Anhui University of Science , Technology,Huainan 232001,China) |
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| Abstract: | For overcoming effect of the underwater acoustic channel on communication quality, orthogonal Wavelet Packet Transform based Decision Feedback blind Equalization algorithm (WPT-DFE) was proposed, on the basis of analyzing orthogonal wavelet packet transform theory and the feature of decision feedback blind equalization algorithm. In this proposed WPT-DFE algorithm, correlativity of signals is lowed by orthogonal wavelet packet transform and iterative formula of forwardback weight vectors is modified by usin... |
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| Keywords: | orthogonal wavelet packet transform decision feedback blind equalization underwater acoustic channels |
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