| The bifurcation threshold value of the chaos detection system for a weak signal |
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| 作者姓名： | 李月 杨宝俊 杜立志 袁野 |
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| 作者单位： | [1]CollegeofCommunicationEngineering,JilinUniversity,Changchun130012,China [2]CollegeofGeo-ExploratlonSciencesandTechnology,JilinUniversity,Changchun130026,China |
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| 摘 要： | Recently, it has become an important problem to confirm the bifurcation threshold value of a chaos detection system for a weak signal in the fields of chaos detection. It is directly related to whether the results of chaos detection are correct or not. In this paper, the discrimination system for the dynamic behaviour of a chaos detection system for a weak signal is established by using the theory of linear differential equation with periodic coefficients and computing the Lyapunov exponents of the chaos detection system; and then, the movement state of the chaos detection system is defined. The simulation experiments show that this method can exactly confirm the bifurcation threshold value of the chaos detection system.
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| 关 键 词： | 混沌探测系统 弱信号 分形 临界值 相平面 信号检测 |
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