一种新的微弱未知信号混沌振子检测法*

混沌振子无法检测与其策动力频率相差较大的微弱信号,为此,提出了混沌阵检测法,但其不易工程实现。针对这种现状提出了一种循环混沌检测方法,该方法不但易于工程实现,而且有很好的普适性。实验表明,该方法能有效、精确地检测微弱信号。

New method of unknown weak signal detection based on chaotic oscillator

Chaotic oscillator can’t detect weak signal that is larger difference from its internal frequency of chaotic oscillator,so chaotic array is proposed.However,the method has many faults,for example design complexity,universal poor and difficult to achieve with the application,and so on.For this situation,this paper advanced a new method of cycle chaos.This method was easy implement in project,but also had strong universal.Experiments show that the method is easy to detect weak signal of high accurate in low SNR.