| 干扰环境中基于信道化预滤波的NC-OFDM系统同步 |
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| 引用本文： | 肖强,吴佩霖,成红庆,许小东.干扰环境中基于信道化预滤波的NC-OFDM系统同步[J].中国科学技术大学学报,2011,41(8). |
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| 作者姓名： | 肖强 吴佩霖 成红庆 许小东 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,安徽合肥,230027 |
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| 基金项目： | 安徽省自然科学基金(090412061)资助 |
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| 摘 要： | 基于子载波功率方差(VSP)方法,提出一种结合信道化滤波器的抗干扰同步方法,以改善系统的同步性能.仿真实验和分析结果表明,当带内分布多源干扰信号时,该算法可以获得逼近于无干扰时的同步性能,且避免额外的信道均衡开销,能够有效适应共享频谱接入环境.
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| 关 键 词： | NC-OFDM VSP 同步 信道化预滤波 干扰 |
Synchronization for NC-OFDM systems based on channelized pre-filtering in interference environments |
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| XIAO Qiang,WU Peilin,CHENG Hongqing,XU Xiaodong.Synchronization for NC-OFDM systems based on channelized pre-filtering in interference environments[J].Journal of University of Science and Technology of China,2011,41(8). |
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| Authors: | XIAO Qiang WU Peilin CHENG Hongqing XU Xiaodong |
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| Institution: | XIAO Qiang,WU Peilin,CHENG Hongqing,XU Xiaodong(Dept.of EEIS,University of Science and Technology of China,Hefei 230027,China) |
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| Abstract: | Based on the variance of subcarrier power(VSP) algorithm,an anti-jamming synchronization algorithm was proposed under the circumstances of multiple in-band interference signals with channelized pre-filtering.Simulation and analysis results indicate that the proposed algorithm can approach interference-free synchronization performance and avoid extra equalization expenditure,which is very suitable for overlay spectrum sharing access. |
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| Keywords: | NC-OFDM VSP synchronization channelized pre-filtering interference |
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