Chaotic dynamic performance analysis of a new duffing circuit

In order to solve the problem in commonly used Duffing circuits which is only suitable for low frequency signals, this paper proposes an a new type of Duffing chaotic circuit, which is suitable for low-frequency and high-frequency weak signals. It also presents an effective method to solve instantaneous saturation problem of the circuit. By means of Multisim simulation software, it has studied the chaotic dynamic behavior and initial value sensitivity of the new circuit at high frequency. The simulation results show that the circuit is a chaotic system and is very sensitive to the initial value. It provides a practical basis for Duffing oscillator to detect weak signals.