| 基于FB-FDE的地空通信分集接收技术 |
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| 引用本文： | 费满锋,易克初. 基于FB-FDE的地空通信分集接收技术[J]. 无线电通信技术, 2008, 34(1): 19-21 |
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| 作者姓名： | 费满锋 易克初 |
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| 作者单位： | 1. 西安电子科技大学综合业务网国家重点实验室,陕西,西安,710071;中国电子科技集团公司第五十四研究所,河北,石家庄,050081
2. 西安电子科技大学综合业务网国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 提出了基于滤波器组频域均衡(FB-FDE)的分集接收方法,充分利用了FB-FDE技术抗多径能力强和动态时变适应性好的特性,较好地解决了低仰角下的地空信道快速时变的频率选择性衰落问题。并且通过建立低仰角下地空信道天线的相关性模型,从理论上分析了天线相关性对FB-FDE技术的分集接收性能的影响。仿真试验表明,天线相关系数为0.5时能获得较好的接收分集增益。
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| 关 键 词： | 滤波器组 频域均衡 空间分集 地空通信 |
| 文章编号： | 1003-3114（2008）01-19-3 |
| 收稿时间： | 2007-08-10 |
| 修稿时间： | 2007-08-10 |
Diversity Reception Technique Based on FB-FDE in Wideband Ground-Air Communication System |
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| FEI Man-feng,YI Ke-chu. Diversity Reception Technique Based on FB-FDE in Wideband Ground-Air Communication System[J]. Radio Communications Technology, 2008, 34(1): 19-21 |
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| Authors: | FEI Man-feng YI Ke-chu |
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| Abstract: | A technique of diversity reception based on FB-FDE in wideband ground-air communication system is proposed for overcoming the rapid time-varying frequency selective fading under low elevation conditions. It has taken full use of the property of the filter bank such as strong anti-multi-path capability and good dynamic time-varying performance. Theoretic analysis has been accomplished on the effect of antenna correlation to the diversity reception performance of the FB-FDE technique. Simulations further demonstrate that it can get better receiving diversity gain when the correlation coefficient between antennas is 0.5. |
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| Keywords: | Filter Bank Frequency Domain Equalization Space Diversity Ground-Air Communication |
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