中文摘要：

基于随机共振的基本原理,采用多尺度随机共振变换的方法用于多频微弱信号的检测,通过调节双稳态随机共振系统参数、噪声强度,将单频微弱信号上产生的随机共振效应扩展到多频信号,实现多频信号的同时检测.结果表明,该方法可从高噪声背景中有效地提取出多频信号,尤其对于多频大参数信号的检测,多尺度随机共振变换有着更好的性能.

英文摘要：

On the basis of stochastic resonance principle,the method of multi-scale stochastic resonance transformation is used to detect adopted multi-frequency weak signal.By means of parameter and noise intensity adjustment of bistable stochastic resonance system,the stochastic resonance effect on the mono-frequency weak signal is expanded to the multi-frequency signal,realizing simultaneous detection of the multifrequency signal.The results show that by using this method,the multi-scale stochastic resonance method the multi-frequency signal can be effectively extracted from the high-noise background.And especially for the detection of multi-frequency signal with large parameters,multi-scale stochastic resonance transformation will have a better performance.