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Engineering signal processing based on bistable stochastic resonance

机译：基于双稳态随机共振的工程信号处理

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摘要

The stochastic resonance (SR) characteristics of a single bistable system and two bistable systems connected in series with small and large parameters have been investigated, respectively. The viewpoint is that a single bistable system is better than a cascaded bistable system in detecting a weak periodic signal in frequency domain, and that, in time field, a cascaded system can detect a more beautiful waveform of either a periodic or an aperiodic weak signal. However, for some detection of a special signal, the periodic pulse for instance, a single bistable system is of great benefit to the signal extraction in time domain. It can provide some important information properties that are hardly obtained in frequency spectrum. Two examples of detecting a weak signal embedded in strong noise are presented in the end to illustrate that a single bistable system and a cascaded bistable system are both powerful tools for signal processing.
机译：研究了单个双稳态系统和两个串联的具有小参数和大参数的双稳态系统的随机共振（SR）特性。观点是，在频域中，单双稳态系统在检测微弱周期性信号方面优于级联双稳态系统，并且在时域中，级联系统可以检测到周期性或非周期性微弱信号的更优美的波形。但是，对于某些特殊信号（例如周期脉冲）的检测，单个双稳态系统对于时域中的信号提取非常有用。它可以提供一些频谱难以获得的重要信息属性。最后给出了两个检测嵌入强噪声中的弱信号的示例，以说明单个双稳态系统和级联双稳态系统都是进行信号处理的强大工具。

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