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微弱直接序列扩频信号Duffing振子检测方法研究 被引量：3

Method for Weak DSSS Signal Detecter Based on Duffing Oscillator
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摘要 Duffing系统对特定信号敏感及对噪声免疫的特性,使其在微弱信号检测中具有潜在应用。该文针对Duffing振子的分岔问题,通过对Duffing系统Feigenbaum行为的分析,导出了在微弱直接序列扩频信号检测中Duffing系统所表现出的间歇性混沌行为,提出了一种新的基于间歇性混沌行为的微弱直扩信号检测方法。通过仿真实验,验证了该方法的有效性。 Duffing system is sensitive to specific signal and immune against the noise. This characteristic can be used to detect weak signal. For the fork problem of Duffing oscillator, intermittent chaos action represented by Duffing system in weak direct sequence spread spectrum （DSSS） signal detection is deduced through analyzing the Duffing system and Feigenbaum action. A new method based on intermittent chaotic action is proposed for weak DSSS signal detection. Finally, simulation experiment shows the validity of this method.
作者 盛广铭 马德保
机构地区 解放军信息工程大学信息技术学院
出处 《电子科技大学学报》 EI CAS CSCD 北大核心 2012年第5期693-696,共4页 Journal of University of Electronic Science and Technology of China
基金 部级预研项目
关键词 混沌系统 直接序列扩频信号 DUFFING振子 大尺度周期 信号检测 chaotic systems direct sequence spread spectrum Duffing oscillator large-scale periodic signal detection
分类号 TN975 [电子电信—信号与信息处理]
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参考文献15

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共引文献10

同被引文献36

引证文献3

二级引证文献10

电子科技大学学报
2012年 第5期

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