摘要
基于一种新的分段混合随机共振模型,设计实现了信号检测硬件电路;对不同噪声强度背景下的微弱周期信号进行了随机共振信号检测实验研究和分析;在相同参数和相同输入信号条件下,将该电路和连续双稳系统电路进行了信号检测效果对比实验。结果表明,该电路可以实现噪声背景下的微弱信号检测,在强噪声背景下,检测效果优于连续双稳系统。
We design and develop the circuit for an innovative piecewise hybrid stochastic resonance system for weak signal detection.We further study the performance of extracting weak periodic signals from strong noise,and compare with continuous bistable system with the same parameters.The experiment results show that our system is suitable for weak signal detection from noise background and has a better performance than the continuous bistable system when strong noise presents.
出处
《电路与系统学报》
北大核心
2013年第2期482-487,共6页
Journal of Circuits and Systems
基金
国家自然科学基金(50875070)
关键词
随机共振
分段混合模型
噪声
硬件电路
stochastic resonance
piecewise hybrid model
noise
circuit
