【摘 要】
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The chile system is sensitive to the initial value, and this property can be applied in the weak signal detction. There are peri-odic, critical and chaotic stat
【机 构】
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Scholl of Electrical Engineering,School of Electrical Engineering,Department of Dispatching Centre
论文部分内容阅读
The chile system is sensitive to the initial value, and this property can be applied in the weak signal detction. There are peri-odic, critical and chaotic states in a chaotic system. When the system is in the critical state, a small perturbation of system parameter may lead to a qualitative change of the system's state. This paper intro-duces a new method to detect weak signals by the way of disturbing the damping ratio. The authors choose the duffing equation, using MATI.AB to carry on the simulation, to study the changes of the sys-tem when the signal to be measured is added to the damping ratio.By means of observing the phase locus chart and time domain chart, the weak signal will be detected.
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