| 数字通信中空间分集均衡技术仿真研究 |
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| 引用本文： | 康翠芹.数字通信中空间分集均衡技术仿真研究[J].中国科技信息,2007(4):92-93,97. |
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| 作者姓名： | 康翠芹 |
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| 作者单位： | 山东省立医院山东省济南经五路324号,250021 |
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| 摘 要： | 在数字通信中，信道的多径传播和衰落特性常在接收端引起码间干扰（ISI）并降低信噪比，严重影响了通信质量。本文研究了空间分集与盲均衡相结合的空间分集均衡技术（SDE），提出了一种基于等增益合并和判决反馈盲均衡的空间分集均衡算法，以克服码间干扰并消除衰落对通信系统所带来的不利影响。通过计算机仿真对空间分集均衡算法和传统盲均衡算法的性能进行了对比，结果表明空间分集均衡技术优于传统的盲均衡技术，提高了数字通信性能。
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| 关 键 词： | 数字通信 空间分集 盲均衡 |
Study and simulation of Spatial Diversity Equalization in Digital Communication |
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| Kang Cuiqin.Study and simulation of Spatial Diversity Equalization in Digital Communication[J].CHINA SCIENCE AND TECHNOLOGY INFORMATION,2007(4):92-93,97. |
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| Authors: | Kang Cuiqin |
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| Abstract: | In digital communication, the multipath and fadingchannels always introduce inter-symbol interference(ISI) in the receiver and reduce the signal noise ratio(SNR). The spatial diversity equalization (SDE) isstudied, which consists of spatial diversity techniqueand blind equalizer, and a SDE based on spatialdiversity and blind decision feedback equalization isproposed, which is used to eliminate the ISI andincrease the SNR. Computer simulation demonstratesthat the proposed algorithm is superior to thetraditional bind equalization. |
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| Keywords: | digital communication spatial diversity blind equalization |
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