基于混沌移位键控调制的卫星隐蔽通信性能分析  

Performance Analysis of Satellite Covert Communication Based on Chaos Shift Keying Modulation

作　　者：戎雁[1] 郝士琦[1] 高广军[1] 

机构地区：[1]合肥电子工程学院

出　　处：《通信技术》2008年第6期113-115,共3页Communications Technology

基　　金：安徽省自然科学基金资助项目(070412053)

摘　　要：文章提出了一种基于相干混沌移位键控信号的卫星隐蔽通信方案,并建立了系统模型,然后采用离散基带信号分析了其隐蔽性能、抗干扰性能以及相关参数的选取。理论分析和仿真结果表明使用相干混沌移位键控信号完成卫星隐蔽通信具有较好的隐蔽性和抗干扰性,为基于混沌调制技术的卫星隐蔽通信提供了理论支持。A scheme of satellite covert communication based on the coherent chaos shift keying signal is proposed in this paper, then the whole system model is also constructed. Then the hidden ability, anti-jamming performance and correct parameters selection of the system are analyzed through discrete baseband model .Theoretic analysis and simulation results indicate that the satellite covert communication based on coherent CSK signal has a better performance in hidden ability and anti-jamming, and thus provides a theoretical support for the satellite covert communication with coherent CSK signal, and also a new approach for this communication based on chaotic modulation.

关 键 词：卫星隐蔽通信 频谱重叠 混沌移位键控 混沌扩频因子 

分 类 号：TN927[电子电信—通信与信息系统]