sA Weak Signal Detection Method Based on Memristor-Based Duffing-Van der pol Chaotic Synchronization System

Aiming at the deficiencies of the existing chaotic detection methods, a new weak signal detection method based on chaotic synchronization system is proposed in this paper. This detection system is achieved by a memristor-based Duffing-Van der pol chaotic system, and the drive-response method is used to construct a synchronization system. By analyzing the synchronization error of the detection system, the amplitude estimate method of the test signal is proposed. This method only needs the chaotic system run in the chaotic state and avoids solving the running state. It can effectively solve the problems of complex parameter setting, long state transition time and difficulty in state determination in traditional detection methods. Experimental results indicate that this new method can effectively estimate the parameter information of the test signal.