系统随机共振的最佳耦合矩阵

Best Coupling Matrix of System Stochastic Resonance

非线性单稳态系统如果具有一定的能量阀值和非对称性,就可以在噪声的干扰下发生随机共振,产生一些系统原来没有的现象.如果耦合系数不同,产生的现象就会有所变化.对耦合后的系统求功率谱,可以了解系统的能量变化以及最大值,利用遗传算法可以进行最优耦合矩阵的搜索,从而能够找到所需要的最佳耦合矩阵.

If nonlinear mono-stable system has certain energy threshold and the asymmetry,stochastic resonance and some phenomena which the system does not have can happen.These phenomena may vary with the coupling coefficients.With the power spectrum of the coupling system,the changes in energy and the maximum of this system can be worked out,and genetic algorithm can be used to search for the best coupling matrix we need.