| 应用FB-FDE的M元扩频通信系统 |
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| 引用本文： | 费满锋,易克初. 应用FB-FDE的M元扩频通信系统[J]. 电子科技大学学报(社会科学版), 2008, 0(3) |
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| 作者姓名： | 费满锋 易克初 |
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| 作者单位： | 西安电子科技大学综合业务网国家重点实验室;西安电子科技大学综合业务网国家重点实验室 西安710071中国电子科技集团公司第五十四研究所石家庄; |
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| 基金项目： | 国家自然科学基金(60572148) |
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| 摘 要： | 针对低仰角宽带地空通信中信道的多径时延较大和快速时变的问题,提出了一种应用滤波器组频域均衡技术(FB-FDE)的M元扩频通信系统方案。由于在滤波器组各子带中便于采用简单的均衡器消除动态长时延多径的影响,而M元扩频系统支持CDMA多址高效传输,因此该系统可在不降低信道效率的前提下增强系统的抗动态多径衰落能力。理论分析和仿真试验表明,该系统比采用SC-FDE技术的通信系统具有更好的传输特性,更适合于低仰角下宽带多用户地空通信。
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| 关 键 词： | 滤波器组 频域均衡 地空通信 M元扩频 |
A M-Ary Spreading Spectrum System Using FB-FDE |
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| FEI Man-feng, YI Ke-chu. A M-Ary Spreading Spectrum System Using FB-FDE[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2008, 0(3) |
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| Authors: | FEI Man-feng YI Ke-chu |
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| Affiliation: | FEI Man-feng1,2 , YI Ke-chu1 (1. State Key Laboratory of Integrated Services Networks,Xidian University Xi'an 710071,2. No.54th Research Institute,China Electronics Technology Group Corporation Shijiazhuang 050081 ) |
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| Abstract: | A novel scheme of M-ary spreading communication system using filter-banks for frequency domain equalization (FB-FDE) is proposed for overcoming multi-path fading with large delay and rapid variation of the channel, which is inherent in wideband ground-air communications under low antenna elevation conditions. Because the FB-FDE can remove the effect of dynamical long delay multi-path fading with very simple structure and the M-ary spreading communication system can support code-division multiple-access (CDM... |
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| Keywords: | filter banks frequency domain equalization ground-air communication M-ary spread spectrum |
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