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Content available Application of a ring coupled double-Duffing oscillator to a scheme for identifying the coulter signal with a low SNR
Zhao Zhijie, Liu Runcong, Wang Xiaodong
Journal of Theoretical and Applied Mechanics
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2023
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Vol. 61 nr 2
379--393
EN
In order to use chaotic oscillators to identify Coulter signals with a low SNR (SNR⩽0), a Gaussian pulse signal is used to simulate the Coulter signal, and we study the continuous synchronous mutation (CSM) phenomenon of a chaotic ring coupled double-Duffing (RCDD) oscillator to identify the signals. The maximum difference between the two state variables in the oscillator can be used to determine the anti-noise ability of the oscillator and construct a function to identify pulse amplitudes. A Simulink model is constructed to verify that the proposed method can be used to identify pulse amplitudes with a low SNR, which provides an approach for developing a technology of measuring Coulter signals with the low SNR.
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