基于Duffing振子的微弱周期信号混沌检测性能研究：

Study on the weak sinusoidal signal detection property using Duffing chaos system

不同的混沌振子具有不同的混沌检测性能.本文围绕Duffing振子的混沌检测方法,从混沌系统临界点相图的突变性、混沌区间保持性以及混沌临界点的容噪性等三个方面的检测性能做了进一步研究,并分别分析了影响这些性能的因素,最后围绕这三个方面对两个不同混沌振子的混沌检测性能做了分析和比较.

Chaotic detection method can be used to pick out the weak sinusoidal signal submerged in noise. Three types of detection properties of this method are proposed in this paper, i.e., sharp change ability of phase diagram, maintenance zone of chaos, and the sufferance with noise of the chaos critical point. After analyzing the factors influencing these three properties, two different chaotic systems are compared according to the three properties.