采用互相关方法 ,研究了随机二进制信号和高斯白噪声同时激励施密特触发器时的输出响应 .结果表明 ,一定量的噪声有助于信息传输 ,即非周期随机共振 .然后 ,考察了信号幅值和触发器阈值对非周期随机共振的影响 ,证实了利用施密特触发器中的非周期随机共振效应 ,可以减小随机信号传输中的噪声水平和改善输出信号质量 .该研究在数字通信领域具有十分重要的意义 . The cross-correlation method was used to study the output response of a random binary signal and Gaussian white noise when the Schmitt trigger is activated simultaneously. The results show that a certain amount of noise contributes to the information transmission, ie, the aperiodic stochastic resonance. Then, The effect of amplitude and trigger threshold on aperiodic stochastic resonance confirms that the use of aperiodic stochastic resonance in a Schmitt trigger can reduce the noise level in random signal transmission and improve the output signal quality.The study in the figure The field of communications is of great importance.