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- Title
4FSK signal processing based on adaptive tristable stochastic resonance under levy noise.
- Authors
Zhang, Yalin; Wang, Fuzhong
- Abstract
Aiming at the problem of low quality of coherent demodulation transmission signal of digital signal in the background of Levy noise, this paper proposes a new method of 4FSK signal reception based on adaptive tristable stochastic resonance (SR) system. The bit error rate (BER) of output signals of adaptive tristable SR system model and the traditional modulation model are compared by simulation. The numerical simulation results show that compared with the traditional model, the output BER of the 4FSK signal after demodulation of the adaptive tristable SR system model is reduced by 4% compared with the traditional model. The time domain image of 4FSK signal is clearer, the burrs are significantly reduced and the spectral amplitude of 4FSK signal is greatly improved. The success of this experiment suggests a strong promise of SR systems for digital signal detection in impact noise.
- Subjects
ADAPTIVE signal processing; STOCHASTIC resonance; BIT error rate; SIGNAL detection; NOISE; DIGITAL communications
- Publication
Modern Physics Letters B, 2024, Vol 38, Issue 17, p1
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S0217984921506004