The signal to noise ratio (SNR) obtained by the devices for manifesting stochastic resonance (SR) can be larger than that by the optimal linear filter. The essential reason for this fact is that there is an energy tra...The signal to noise ratio (SNR) obtained by the devices for manifesting stochastic resonance (SR) can be larger than that by the optimal linear filter. The essential reason for this fact is that there is an energy transfer from noise to signal under the SR condition which is absent in the linear case.展开更多
A model of double-harmonious circuit for non-feedback control of chaos is introduced. A controlling signal is added to the coefficient for two-order term of the nonlinear differential equation The effect of controllin...A model of double-harmonious circuit for non-feedback control of chaos is introduced. A controlling signal is added to the coefficient for two-order term of the nonlinear differential equation The effect of controlling signal on controlling chaos is studied. By changing the controlling frequency fk and controlling strength Ik, chaos to period-doubling, period-adding and quasi-period state can be controlled. The effect of phase on controlling chaos is also discussed. A breathing phenomenon is observed and its mechanism is explained.展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘The signal to noise ratio (SNR) obtained by the devices for manifesting stochastic resonance (SR) can be larger than that by the optimal linear filter. The essential reason for this fact is that there is an energy transfer from noise to signal under the SR condition which is absent in the linear case.
基金the National Natural Science Foundation of China
文摘A model of double-harmonious circuit for non-feedback control of chaos is introduced. A controlling signal is added to the coefficient for two-order term of the nonlinear differential equation The effect of controlling signal on controlling chaos is studied. By changing the controlling frequency fk and controlling strength Ik, chaos to period-doubling, period-adding and quasi-period state can be controlled. The effect of phase on controlling chaos is also discussed. A breathing phenomenon is observed and its mechanism is explained.
