典型文献
Research and application of stochastic resonance in quad-stable potential system
文献摘要：
To solve the problem of low weak signal enhancement performance in the quad-stable system,a new quad-stable po-tential stochastic resonance(QSR)is proposed.Firstly,under the condition of adiabatic approximation theory,the stationary probability distribution(SPD),the mean first passage time(MFPT),the work(W),and the power spectrum amplification factor(SAF)are derived,and the impacts of system parameters on them are also extensively analyzed.Secondly,numerical simulations are performed to compare QSR with the classical Tri-stable stochastic resonance(CTSR)by using the ge-netic algorithm(GA)and the fourth-order Runge-Kutta algorithm.It shows that the signal-to-noise ratio(SNR)and mean signal-to-noise increase(MSNRI)of QSR are higher than CTSR,which indicates that QSR has superior noise immunity than CTSR.Finally,the two systems are applied in the detection of real bearing faults.The experimental results show that QSR is superior to CTSR,which provides a better theoretical significance and reference value for practical engineering application.
文献关键词：
中图分类号：
作者姓名：
Li-Fang He;Qiu-Ling Liu;Tian-Qi Zhang
作者机构：
School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications(CQUPT),Chongqing 400065,China
文献出处：
引用格式：
[1]Li-Fang He;Qiu-Ling Liu;Tian-Qi Zhang-.Research and application of stochastic resonance in quad-stable potential system)[J].中国物理B（英文版）,2022(07):193-205
A类：
CTSR,MSNRI
B类：
Research,application,stochastic,resonance,quad,stable,potential,To,solve,problem,low,weak,signal,enhancement,performance,new,QSR,proposed,Firstly,under,condition,adiabatic,approximation,theory,stationary,probability,distribution,SPD,mean,first,passage,MFPT,work,power,spectrum,amplification,SAF,derived,impacts,parameters,them,also,extensively,analyzed,Secondly,numerical,simulations,performed,compare,classical,Tri,by,using,netic,algorithm,GA,fourth,order,Runge,Kutta,It,shows,that,noise,ratio,increase,higher,than,which,indicates,superior,immunity,Finally,two,systems,applied,detection,real,bearing,faults,experimental,results,provides,better,theoretical,significance,reference,value,practical,engineering
AB值：
0.551899
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