| 调制引入循环平稳的盲信道辨识 |
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| 引用本文： | 程剑斋,曹士坷.调制引入循环平稳的盲信道辨识[J].南京邮电大学学报(自然科学版),2007,27(3):18-21. |
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| 作者姓名： | 程剑斋 曹士坷 |
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| 作者单位： | 南京邮电大学,通信与信息工程学院,江苏,南京,210003 |
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| 基金项目： | 国家自然科学基金
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江苏省自然科学基金 |
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| 摘 要： | 针对有限冲激响应(FIR)的单输入单输出(SISO)信道,提出了一种新颖的盲信道辨识方法,该方法利用了复序列调制产生的循环平稳特性.其特点是,系统的传输功率恒定,接收端只需要一根接收天线,在接收端根据各用户的循环统计量支撑的不同,将它们分离开来,每个用户形成自己的子空间,并进而对各子空间进行辨识.并给出了信道子空间可辨识性的证明,还对子空间辨识情况进行了模拟分析.
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| 关 键 词： | 信道辨识 循环平稳 循环二阶统计量 调制 循环平稳特性 盲信道辨识 Channel Identification Single Blind Cyclostationarity Induced 模拟分析 情况 子空间辨识 可辨识性 分离 支撑 循环统计量 用户 接收天线 接收端 功率恒定 传输 |
| 文章编号： | 1673-5439（2007）03-0018-04 |
| 收稿时间： | 2006-09-05 |
| 修稿时间： | 2006-09-052007-01-18 |
Modulation Induced Cyclostationarity for Blind Single Channel Identification |
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| CHENG Jian-zhai,CAO Shi-ke.Modulation Induced Cyclostationarity for Blind Single Channel Identification[J].Journal of Nanjing University of Posts and Telecommunications,2007,27(3):18-21. |
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| Authors: | CHENG Jian-zhai CAO Shi-ke |
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| Institution: | College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | In this paper,a novel modulation induced cyclostationarity (MIC) scheme is designed for the identification of FIR single-input-single-output (SISO) channel,with the property that the transmit power is constant and the receiver needs only one antenna.The approach makes use of the modulation-induced cyclostationarity to separate the cyclic statistics for every user,featuring in one subspace for each user,and being able to identify individual channel of different users.The proof of the channel identifiability is presented and the simulation of the subspace identification algorithm is also given. |
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| Keywords: | channel identification cyclostationarity cyclic second-order statistics |
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