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通过计算机模拟，在ＩＯ_３~－ＡｓＯ_３~３－化学双稳体系中，对反应控制参量加入周期信号和高 斯噪声，体系由于信号和噪声的作用发生上下态之间相互跃迁。计算输出时间序列的功率谱，发现 信号在噪声的作用下被放大，在某一最佳噪声强度下，存在一个最大的信噪比输出，表现出随机共 振的特征。
By computer simulation, periodic signals and Gaussian noise are added to the reaction control parameters in IO_3 ~ -AsO_3 ~ 3-chemical bistability systems. The transition between the up-and-down states occurs due to the signal and noise effects. Calculating the power spectrum of the output time series, it is found that the signal is amplified under the influence of noise. At a certain optimal noise intensity, there is a maximum output of signal-to-noise ratio, which shows the characteristics of stochastic resonance.