| 一种短波扩频通信系统的信号接收方案 |
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| 引用本文： | 王孜,张永红. 一种短波扩频通信系统的信号接收方案[J]. 舰船科学技术, 2008, 30(Z1). DOI: 10.3404/j.issn.1672-7649.2008.S.032 |
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| 作者姓名： | 王孜 张永红 |
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| 作者单位： | 武汉船舶通信研究所,湖北,武汉,430079 |
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| 摘 要： | 给出了一种短波扩频通信系统的信号接收方案.该方案针对短波信道的特点,设计了一种可靠信号同步捕获方法以消除多径对信号捕获的影响,同时利用多径信号的有效能量,采用了RAKE接收技术来提高输出信噪比.经仿真证明,该方案使得误比特性能有了明显的改善.
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| 关 键 词： | 短波通信 级联码 RAKE接收技术 多径分离 多径合并 |
A scheme of signal acquisition of HF SS communication system |
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| WANG Zi,ZHANG Yong-hong. A scheme of signal acquisition of HF SS communication system[J]. Ship Science and Technology, 2008, 30(Z1). DOI: 10.3404/j.issn.1672-7649.2008.S.032 |
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| Authors: | WANG Zi ZHANG Yong-hong |
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| Abstract: | A scheme of signal receiver of the HF SS communication system is presented.Aiming at the multi-path effect and Doppler effect of the HF channel,a reliably capturing mode of the signal is designed to counteract the impact of multi-path,and RAKE receiving technology is also adopted to improve output SNR with utilizing the effective energy of multi-path signal.It is indicated that the BER is obviously improved in being use of RAKE receive technology. |
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| Keywords: | HF communication concatenated code RAKE receiving technology multi-path separation multi-path combination |
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