【摘要】 将Duffing振子用于弱暂态正弦信号的检测,发现可被检测的暂态正弦信号的持续时间下限为12个周期,对相位随机分布并淹没在噪声中的弱暂态正弦信号可以用一组(16个)Duffing方程检测到,对到达时间的定位可以精确到一个周期。更多还原

【Abstract】 The authors use Duffing Oscillator to detect weak transient sinusoidal signal and find that the minimum lasting time of a transient sinusoidal signal that can be detected is 12 periods. As to a phase randomly distributed weak transient sinusoidal signal ,which is drawn by the white noise,one can use 16 Duffing Oscillators to detect, and the error of the signal arriving time which can be detected is in one period.更多还原