| 适用于多载波共频谱传输的干扰消除方式 |
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| 引用本文： | 李悦,郝英川.适用于多载波共频谱传输的干扰消除方式[J].无线电通信技术,2013,39(1):47-48,58. |
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| 作者姓名： | 李悦 郝英川 |
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| 作者单位： | 1. 海军装备研究院,北京,100161
2. 海军驻石家庄地区军代室,河北石家庄,050081 |
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| 摘 要： | 针对多载波共频谱传输应急卫星通信系统,各干扰载波互不相关,且干扰载波的功率远大于扩频信号的功率,干扰载波对扩频信号存在严重的干扰,因此对于扩频信号的恢复,载波重构与干扰消除处理是必须的。对于多载波干扰消除其实现方式可分为串行干扰消除和并行干扰消除2种,为此分析和比较了2种典型实现方式,提出了基于数字重采样的改进方案。分析结果表明,基于数字重采样的串行干扰方式更适合多载波共频谱传输应急系统卫星通信系统的应用。
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| 关 键 词： | 共频带传输 多载波重构 串行干扰消除 并行干扰消除 |
Research on Interference Cancellation for Bandwidth-shared Multi-carrier Transmission System |
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| LI Yue
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HAO Ying-chuan.Research on Interference Cancellation for Bandwidth-shared Multi-carrier Transmission System[J].Radio Communications Technology,2013,39(1):47-48,58. |
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| Authors: | LI Yue HAO Ying-chuan |
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| Affiliation: | 1.Naval Academy of Armament,Beijing 100161,China; 2.Military Representative Office of PLA Navy Stationed in Shijiazhuang Region,Shijiazhuang Hebei 050081,China) |
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| Abstract: | For the emergency satellite communication system using bandwidth-shared multi-carrier transmission,the interference carriers are not correlated,and the power of interference carrier is much more higher than that of communication carrier,so the interference cancellation is necessary.Two typical interference cancellation methods are analyzed in this paper:successive interference cancellation and parallel interference cancellation.And also an improved scheme based on the digital resampling is proposed.The result shows that successive interference cancellation based on digital resampling is suitable for the bandwidth-shared multi-carrier transmission system better. |
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| Keywords: | bandwidth-shared transmission multi-carrier reconstruction successive interference cancellation parallel interference cancellation |
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