| 宽带无线通信的单载波频域均衡技术研究 |
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| 引用本文： | 桑会平,邓甲昊. 宽带无线通信的单载波频域均衡技术研究[J]. 科技导报(北京), 2009, 27(7) |
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| 作者姓名： | 桑会平 邓甲昊 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,石家庄,050081;北京理工大学机电学院,北京,100081 |
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| 摘 要： | 无线环境下,宽带通信面临严重的多径衰落问题.多径时延扩展到数+到数百个符号,造成严重的符号间干扰.单载波频域均衡(SC-FDE)是解决宽带无线通信系统中多径衰落问题的一个方案.文中探讨了SC-FDE系统的组成结构和处理流程,将SC-FDE与目前被广泛关注的OFDM进行了对比.SC-FDE是一种单载波体制,可在采用高效频域均衡算法的同时保留传统单载波系统的成熟技术.研究了如何将单载波系统中成熟的锁相技术和OFDM的帧同步算法应用于SC-FDE.最后分析了SC-FDE信道估计与均衡算法;通过仿真对SC-FDE的性能进行了验证.结果证明了SC-FDE对抗多径衰落的有效性.
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| 关 键 词： | 单载波频域均衡 正交频分复用 信道估计 定时同步 |
Single Carrier Frequency Domain Equalization Technology Applied to Broadband Wireless Communications |
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| SANG Huiping,DENG Jiahao .No. Research Institute,China Electronics Technology Group Corporation,Shijiazhuang ,China .School of Mechatronics Engineering,Beijing Institute of Technology,Beijing ,China. Single Carrier Frequency Domain Equalization Technology Applied to Broadband Wireless Communications[J]. Science & Technology Review, 2009, 27(7) |
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| Authors: | SANG Huiping DENG Jiahao .No. Research Institute China Electronics Technology Group Corporation Shijiazhuang China .School of Mechatronics Engineering Beijing Institute of Technology Beijing China |
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| Affiliation: | SANG Huiping1,DENG Jiahao2 1.No.54 Research Institute,China Electronics Technology Group Corporation,Shijiazhuang 050081,China 2.School of Mechatronics Engineering,Beijing Institute of Technology,Beijing 100081,China |
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| Abstract: | Broadband wireless communication is an attractive technology,which offers bit rates of tens of megabits to hundreds of megabits per second.In wireless environments one likely faces with hostile radio propagation environments.Multipath delay spreads are extended over tens or hundreds of bit intervals,so the measures to combat the multipath effects are the key point.The single carrier frequency domain equalization(SC-FDE),which is adopted by communication standards,is a type of anti-multipath measures.SC-FDE ... |
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| Keywords: | SC-FDE OFDM channel estimation timing synchronization |
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