| 短波扩频通信的Rake接收技术 |
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| 引用本文： | 张永红,杨春兰.短波扩频通信的Rake接收技术[J].信息安全与通信保密,2007(6):77-80. |
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| 作者姓名： | 张永红 杨春兰 |
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| 作者单位： | 中船重工集团第七二二研究所,湖北武汉430079 |
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| 摘 要： | 短波天波传播存在严重的多径效应。在短波扩频通信中,采用Rake接收技术可利用多径信号的有效能量提高输出信噪比,改善短波通信质量。Rake接收的关键在于多径信号的识别和分离,论文针对短波信道传播特性,对短波扩频通信中的Rake接收技术进行了研究,设计了有效的多径分离和合并方法,仿真结果表明采用Rake接收技术后,误比特性能有了明显的改善。
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| 关 键 词： | 短波通信 Rake接收技术 多径分离 多径合并 |
| 文章编号： | 1009-8054(2007)06-0077-04 |
| 修稿时间： | 2007年1月31日 |
Rake Receive Technology in HF Spread Spectrum Communication |
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| ZHANG Yonghong,YANG Chunlan.Rake Receive Technology in HF Spread Spectrum Communication[J].China Information Security,2007(6):77-80. |
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| Authors: | ZHANG Yonghong YANG Chunlan |
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| Abstract: | Serious multi-path effect exists in HF sky-wave propagation.In HF spread spectrum communication,Rake receive technology can be used,through utilizing the effective energy of multi-path signal,to improve output SNR and the quality of HF communication.The identified and separated multi-path signal is the key of the Rake receive technology.In this paper,according to the propagation characteristics of HF channel,Rake receive technology in HF spread spectrum communication is studied,and the effective methods for separation and combination of multi-path are designed.The simulation indicates that the BER is obviously improved by the adoption of Rake receive technology. |
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| Keywords: | HF communication Rake receive technology multi-path separation multi-path combination |
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