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一种新型MIMO-DCSK保密通信系统

ZHANG Gang,WANG Yuan,WANG Ying

Journal of University of Electronic Science and Technology of China（2015）

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Abstract
MIMO技术能够抑制信道噪声和多径衰落，无需增加系统带宽和发送功率，而改进型差分混沌键控(DCSK)拥有更好的保密性和信道利用率，结合两者的优势设计出一种新的MIMO-DCSK混沌保密通信系统。对新系统着重在高斯白噪声信道下的误码性能进行了深入研究。仿真结果表明：新型MIMO-DCSK保密通信系统的综合性能比传统DCSK通信系统更为优越，与理论分析的结果一致。
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Key words
modified DCSK,performance analysis,chaotic systems,MIMO
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