期刊文献+

干扰环境中基于信道化预滤波的NC-OFDM系统同步

Synchronization for NC-OFDM systems based on channelized pre-filtering in interference environments
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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. 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.
出处 《中国科学技术大学学报》 CAS CSCD 北大核心 2011年第8期671-680,共10页 JUSTC
基金 安徽省自然科学基金(090412061)资助
关键词 NC-OFDM VSP 同步 信道化预滤波 干扰 NC-OFDM VSP synchronization channelized pre-filtering interference
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参考文献14

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