| 基于选择性合并频率分集的多载频盲均衡算法 |
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| 引用本文： | 郭业才,朱婕.基于选择性合并频率分集的多载频盲均衡算法[J].舰船科学技术,2009,31(2). |
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| 作者姓名： | 郭业才 朱婕 |
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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,江苏南京210044
2. 安徽理工大学,电气与信息工程学院,安徽淮南232001 |
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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 |
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| 摘 要： | 水声信道的多径传播和衰落特性常在接收端引起码间干扰,严重影响了水声通信质量.为了减少码间干扰,提高通信质量,在分析频率分集技术和常数模盲均衡性能的基础上,提出了一种基于选择性合并频率分集的常数模盲均衡算法(SC-CMA).该算法利用了频率分集来减少衰落的影响,克服码间干扰,具有收敛速度快、均方误差小的特点.计算机仿真结果,验证了该算法的有效性.
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| 关 键 词： | 常数模算法 频率分集 盲均衡 水声信道 |
Multiple carrier frequencies blind equalization algorithm based on selective combining frequency diversity |
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| GUO Ye-cai,ZHU Jie.Multiple carrier frequencies blind equalization algorithm based on selective combining frequency diversity[J].Ship Science and Technology,2009,31(2). |
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| Authors: | GUO Ye-cai ZHU Jie |
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| Institution: | 1.College of Electric and Information Engineering;Nanjing University of Information Science and Technology;Nanjing 210044;China;2.School of Electrical and Information Engineering;Anhui University of Science and Technology;Huainan 232001;China |
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| Abstract: | The multipath and fading acoustic channels always introduce Inter-Symbol Interference(ISI)in the receiver and affect underwater acoustic communication quality seriously.In order to improve the communication system performance and decrease Bit Error Rate(BER),Selective Combining frequency diversity based Constant Modulus blind equalization Algorithm(SC-CMA)is proposed on the basis of analyzing frequency diversity and CMA's performance.The proposed algorithm employs frequency diversity for reducing fading eff... |
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| Keywords: | constant modulus algorithm frequency diversity blind equalization underwater acoustic channel |
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