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首页> 外文会议>IEEE Conference on Industrial Electronics and Applications;ICIEA 2012 >The study of novel chaotic oscillator detecting weak signal amplitude
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The study of novel chaotic oscillator detecting weak signal amplitude

机译：新型混沌振荡器检测微弱信号幅度的研究

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摘要

Nowadays the traditional detecting method of weak signal amplitude is to use Duffing system. However it is limited in actual engineering application. Its structure is very simple but its dynamic characteristics are very complex. There are a lot of chaos oscillators being used to detect unknown signal so that the detection method is too complex. In this paper the dynamic characteristics of Lorenz system are studied. And the Lorenz chaotic oscillators are applied in amplitude detection of weak signal which is submerged in strong noise. Through phase diagram analysis and chaotic orbits change the unknown amplitude of weak signal is obtained. The research purpose is to find a new detection method of weak signal amplitude. The simulation results verified that the presented method is feasible and effective. It is lower to detect the signal to noise ratio than those of Duffing system.
机译：如今，传统的弱信号幅度检测方法是使用Duffing系统。但是，在实际工程应用中受到限制。它的结构非常简单，但其动态特性却非常复杂。有很多混沌振荡器用于检测未知信号，因此检测方法过于复杂。本文研究了Lorenz系统的动力学特性。 Lorenz混沌振荡器用于弱信号的幅度检测，该信号被强噪声淹没。通过相位图分析和混沌轨道变化获得了微弱信号的未知振幅。研究目的是寻找一种新的弱信号幅度检测方法。仿真结果证明了该方法的可行性和有效性。检测信噪比低于Duffing系统。

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