Weak Sinusoidal Signal Frequency Detection Via The Array Of Duffing Oscillators
Hua Yang · Jisuanji fangzhen · 2006
Duffing oscillators’ phase transformation from chaos to intermittent chaos is sensitive to the signals, whose frequency difference is little different from the reference signal, while it has immune to white noise and the signals, whose frequency is quite different from the reference signal. The range, of which a single Duffing oscillator can detect, was deduced from the experimental simulation, meanwhile, Duffing oscillator array model, which is to realize the detection of weak sinusoidal signals, was put forward .