摘要
研究了小参数随机共振和大参数二次采样随机共振应用的局限性,提出自适应扫频随机共振算法,通过自动改变信号采样频率和调整双稳系统的结构参数,实现了强噪声中弱信号的检测,达到工程应用的目的。实验研究表明,自适应扫频随机共振技术可应用于工程实际。
The limitation of application on small parametric stochastic resonance and big parametric twice-sampling stochastic resonance was studied. The algorithm of self-adopting scanning stochastic resonance has been put forward. Detection of weak signal submerged in strong noise was realized by automatic changing the frequency of signal sampling and adjusting the structural parameter of bistable system, and reached the purpose of engineering application. Experimental study shows that the self-adopting scanning stochastic resonance technique can be applied to engineering practice.
出处
《机械设计》
CSCD
北大核心
2005年第2期42-44,共3页
Journal of Machine Design
基金
国家自然科学基金资助项目(50175081)
关键词
随机共振
自适应扫频随机共振
双稳系统
频谱
stochastic resonance
self-adopting scanning stochastic resonance
bistable system
frequency spectrum
