| 一种分数间隔解相关判决反馈盲均衡算法 |
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| 引用本文： | 郭业才,张艳萍. 一种分数间隔解相关判决反馈盲均衡算法[J]. 舰船科学技术, 2009, 31(5). DOI: 10.3404/j.issn.1672-7649.2009.05.032 |
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| 作者姓名： | 郭业才 张艳萍 |
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| 作者单位： | 安徽理工大学,电气与信息工程学院,安徽,淮南,2320011;南京信息工程大学,电子与信息工程学院,江苏,南京,210044;南京信息工程大学,电子与信息工程学院,江苏,南京,210044 |
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| 基金项目： | 全国优秀博士学位论文作者专项基金，江苏省高等学校自然科学基金，江苏省六大人才高峰培养对象资助项目 |
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| 摘 要： | 针对波特间隔盲均衡算法的缺陷,利用分数间隔盲均衡算法能获得更多更详细的信道信息,判决反馈滤波器能补偿深度谱零点信道畸变所产生的影响,解相关常数模算法能加快收敛速度的优点,提出一种分数间隔解相关判决反馈盲均衡算法(FSDDFE).该算法采用分数间隔加判决反馈的模型结构,在均衡器(前馈滤波器)权系数的调整中,引入了解相关常数模算法,使FSDDFE算法的收敛速度显著加快、均方误差明显减少.水声信道的仿真结果,验证了该算法的有效性能.
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| 关 键 词： | 解相关常数模算法 分数间隔 判决反馈均衡器 水声信道 |
A novel fractionally spaced de-correlation decision feedback blind equalization algorithm |
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| GUO Ye-cai,ZHANG Yan-ping. A novel fractionally spaced de-correlation decision feedback blind equalization algorithm[J]. Ship Science and Technology, 2009, 31(5). DOI: 10.3404/j.issn.1672-7649.2009.05.032 |
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| Authors: | GUO Ye-cai ZHANG Yan-ping |
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| Affiliation: | 1.School of Electrical and Information Engineering;Anhui University of Science and Technology;Huainan232001;China;2.College of Electric and Information Engineering;Nanjing University of Information Science and Technology;Nanjing210044;China |
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| Abstract: | Aiming at the defects of baud spaced based blind equalizer(FSE),a novel fractionally spaced de-correlation decision feedback blind equalization algorithm(FSDDFE)is proposed. The FSDDFE employs the FSE for obtaining the more detailed channel information,uses decision feedback filer to eliminate the effects of channel distortion or multi-path,and utilizes the de-correlation constants modulus algorithm to improve the convergent rate. In the proposed FSDDFE,the de-correlation constants modulus algorithm is intr... |
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| Keywords: | de-correlation constants modulus algorithm fractionally spaced decision feedback equalizer underwater acoustic channel |
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