基于双耦合Duffing振子的随机相位正弦信号检测

Detection of phase randomly distributed weak sinusoidal signal based on double coupled doffing oscillators

首先采用双耦合混沌振子阵列实现了随机相位微弱正弦信号的检测,在此基础上,提出了新的检测方法,即利用单个双耦合混沌振子,通过临界到混沌及周期状态的变化检测随机相位微弱正弦信号并大致估计信号相位范围。该方法比双耦合混沌振子阵列法简单,更易于实现。

A group of coupled chaotic oscillators is used to achieve the detection of phase randomly distributed weak sinusoidal signal and a new detection method is presented.According to the change of the critical state between the chaos and the period by the single coupled chaotic oscillators the phase randomly distributed weak sinusoidal signal is detected and the phase range can be estimated. It is easier to carry out than the way of a group of coupled chaotic oscillators.