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一個新的混沌模型及其硬件實現(xiàn)

李春福,  胡志恒,  虞厥邦

李春福, 胡志恒, 虞厥邦. 一個新的混沌模型及其硬件實現(xiàn)[J]. 電子與信息學報, 2002, 24(3): 422-425.
引用本文: 李春福, 胡志恒, 虞厥邦. 一個新的混沌模型及其硬件實現(xiàn)[J]. 電子與信息學報, 2002, 24(3): 422-425.
Li Chunfu, Hu Zhiheng, Yu Juebang . A new chaos model with its hardware implementation[J]. Journal of Electronics & Information Technology, 2002, 24(3): 422-425.
Citation: Li Chunfu, Hu Zhiheng, Yu Juebang . A new chaos model with its hardware implementation[J]. Journal of Electronics & Information Technology, 2002, 24(3): 422-425.

一個新的混沌模型及其硬件實現(xiàn)

A new chaos model with its hardware implementation

  • 摘要: 該文提出了一個新的非線性動力學系統(tǒng)模型并對其進行了仿真研究,結(jié)果表明此模型具有正的李雅普諾夫指數(shù),表現(xiàn)出時域偽隨機性和連續(xù)的頻譜,因而此模型是一個混沌發(fā)生器。由于它的線性子系統(tǒng)的條件李雅普諾夫指數(shù)均為負,因而是可同步子系統(tǒng),能夠用于混沌保密通信。該文還給出了此模型的兩種分段線性電路實現(xiàn)方法。
    Abstract: A new nonlinear dynamical model is presented and numerically studied. It is shown that the model has a positive Lyapunov exponent, it also has pseudo-random waveform and continuous power spectra, so it is a chaos generator. Since the conditional Lyapunov exponents of its linear subsystem are all negative, the linear subsystem is synchronizable and the new chaos generator can be used for chaotic communication. Two kinds of piecewise-linear circuit realization based on the model are given.
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  • M.Itoh.H.Murakami,L.O.Chua,Comnmunication systems via chaotic modulations,IEICE Trans.oin Fundament.,1995,E77-A(6),1000-1005.[2]H.Dedieu,M.P.Kennedy,M.Hasler,Chaotic shift keying: Modulation and demodulation of a chaotic carrier using self-synchronization of Chuas circuit,IEEE Trains.on CAS II,1993,40(10).634-642.[3]N.J.Corron,D.W.Hahs,A new approach to communications using chaotic signals,IEEE Trans.on CAS I,1997,44(5),373-382.[4]M.Itoh,H.Murakami,New communication systems via chaotic synchronizations and modulations,IEICE Trans.on Fundment.,1995,E78-A(3),285-290.[5]KM.Cuomo,A.V.Oppenhei,S.H.Strogatz,Synchronization of Lorenz-based chaotic circuits with applications to communictions,IEEE Trans.onl CAS II,1993,40(10),626-633.[6]C.L.Koh,T.Ushio,Digital communication method based on M-synchronized chaotic systemss.IEEE Trans.on CAS I,1997,44(5),383-390.[7]M.P.Kennedy,Three steps to chaos-part II: A Chuas circuit priincr,IEEE Trans.on CAS I.1993,40(10),657-674.[8]T.S.Parker,L.O.Chua,Practical Nuinerical Algorithms for Chaotic Systems,Now York.Springer-Verlag,1989,73-82.
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出版歷程
  • 收稿日期:  2000-03-20
  • 修回日期:  2000-08-28
  • 刊出日期:  2002-03-19

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