| 一种自适应盲分离跳频信号的方法 |
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| 引用本文： | 杨阳,李辉,万坚,戴旭初.一种自适应盲分离跳频信号的方法[J].通信技术,2008,41(12). |
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| 作者姓名： | 杨阳 李辉 万坚 戴旭初 |
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| 作者单位： | 1. 中国科学技术大学,电子工程与信息科学系,安徽,合肥,230027
2. 西南电子电信技术研究所,四川,成都,610041 |
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| 摘 要： | 在跳频扩频通信系统中,由于多个跳频信号在时域重叠,频域跳变,使得非合作接收条件下跳频信号的分离成为通信侦察和对抗中的一个难点问题.本文基于各源信号统计独立这一特性,采用独立分量分析的思想和技术,提出一种适合于跳频信号盲分离的自适应方法,并且针对不同频点上分离信号中出现的次序模糊问题,给出了一种跳频时刻估计算法和信号拼接的算法.理论分析和仿真实验表明,本文提出的方法能够有效地分离出多个跳频信号.
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| 关 键 词： | 跳频信号 盲源分离 独立分量分析 信号拼接 |
An Adaptive Blind Separation Method for Frequency-Hopping Signals |
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| YANG Yang,LI Hui,WAN Jian,DAI Xu-chu.An Adaptive Blind Separation Method for Frequency-Hopping Signals[J].Communications Technology,2008,41(12). |
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| Authors: | YANG Yang LI Hui WAN Jian DAI Xu-chu |
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| Affiliation: | YANG Yang,LI Hui,WAN Jian,DAI Xu-chu (Department of Electronics Engineering , Information Science,USTC,Hefei Anhui 230027,China,Southwest Institute of Electronic Telecommunications Technology,Chengdu Sichuan 610041,China) |
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| Abstract: | In frequency hopping (FH) spread spectrum communication system,due to the multiple FH signals overlap in time domain and frequency domain,the separation of multiple FH signals becomes a hard problem in non-cooperative communication environments.Based on statistic independence of source signals,a new adaptive separation method for frequency-hopping signals is proposed,which utilizes ICA (Independent Component Analysis) theories and algorithms.And the algorithms to estimate hopping-time and eliminate order am... |
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| Keywords: | Frequency Hopping Blind Source Separation Independent Component Analysis Signal Matching |
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