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Adaptive piecewise re-scaled stochastic resonance excited by the LFM signal

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Abstract

The piecewise re-scaled stochastic resonance method is proposed and thoroughly investigated in a bistable system, which is induced by the linear frequency-modulated (LFM) signal. At first, the theoretical formulation for piecewise re-scaled stochastic resonance is explained in detail. Then, several numerical simulations are carried out and the effects of some related parameters are discussed, in which the moment of the signal segmentation and the re-scaled coefficient are key factors. Meanwhile, the numerical results indicate that the proposed method manages to process the LFM signal submerged in the noise. After that, adaptive piecewise re-scaled SR is proposed to solve the problem of the parameter selection. At last, the comparison between fractional Fourier transform (FRFT) and the proposed method is present. Compared to the traditional FRFT, the method has a better performance, especially in amplification effect. The method in this paper may provide reference for processing other kinds of frequency-modulated signals besides the LFM signal.

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Acknowledgements

Jianhua Yang acknowledges financial support by the National Natural Science Foundation of China (Grant No. 11672325), the Priority Academic Program Development of Jiangsu Higher Education Institutions and the Top-notch Academic Programs Project of Jiangsu Higher Education Institutions. Miguel A. F. Sanjuán acknowledges the Spanish State Research Agency (AEI) and the European Regional Development Fund (FEDER) under Project No. FIS2016-76883-P.

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Authors and Affiliations

  1. School of Mechatronic Engineering, China University of Mining and Technology, 221116, Xuzhou, People’s Republic of China

    Chengjin Wu & Jianhua Yang

  2. School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, People’s Republic of China

    Zhiqiang Wang

  3. Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining and Technology, 221116, Xuzhou, People’s Republic of China

    Jianhua Yang

  4. Gas Turbine Research Institute, Shanghai Jiao Tong University, 200240, Shanghai, People’s Republic of China

    Dawen Huang

  5. Nonlinear Dynamics, Chaos and Complex Systems Group, Departamento de Física, Universidad Rey Juan Carlos, Tulipán s/n, 28933, Móstoles, Madrid, Spain

    Miguel A. F. Sanjuán

  6. Department of Applied Informatics, Kaunas University of Technology, Studentu 50-407, LT-51368, Kaunas, Lithuania

    Miguel A. F. Sanjuán

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  1. Chengjin Wu
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  2. Zhiqiang Wang
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  3. Jianhua Yang
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  4. Dawen Huang
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  5. Miguel A. F. Sanjuán
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Correspondence to Jianhua Yang.

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Wu, C., Wang, Z., Yang, J. et al. Adaptive piecewise re-scaled stochastic resonance excited by the LFM signal. Eur. Phys. J. Plus 135, 130 (2020). https://doi.org/10.1140/epjp/s13360-020-00195-0

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