具有时滞的分数阶随机扩散细胞神经网络的动力学研究

Study on dynamics of fractional-order random diffusion cellular neural networks with time delays

  • 摘要: 对融合了反应–扩散机制、时变时滞以及随机扰动的分数阶细胞神经网络进行了全面分析. 我们首先证明了均方加权伪 S -渐近 \omega -周期解的存在唯一性,将经典的周期性概念推广到更具灵活性的随机框架中. 接着,得到了保证有限时间稳定性的充分条件,从而确保系统能够在预设时间范围内实现快速而精确的收敛. 通过在模型中引入分数阶微积分、空间扩散、时滞效应与随机因素,为在不确定性和空间非均质条件下刻画神经动力学提供了一个真实且严格的框架.最后,数值仿真验证了理论结果,展示了系统的类周期行为与有限时间稳定性. 研究结果对类脑计算领域具有重要意义,并为图像处理、机器人视觉以及生物系统建模等未来应用奠定了理论基础.

     

    Abstract: We present a comprehensive analysis of a class of fractional-order cellular neural networks incorporating reaction-diffusion mechanisms, time-varying delays, and random perturbations. We establish the existence and uniqueness of mean-square weighted pseudo S-asymptotically ω-periodic solution, extending classical periodicity concepts to a more flexible stochastic framework. Furthermore, sufficient conditions are derived to guarantee finite-time stability, ensuring rapid and precise convergence within a predefined time horizon. By integrating fractional calculus, spatial diffusion, time delays, and random effects into a model, this work provides a realistic and rigorous framework for modeling neural dynamics under uncertainty and spatial heterogeneity. Finally, numerical simulations validate the theoretical results, illustrating both the periodic-like behavior and finite-time stability of the system. The findings contribute significantly to the neuromorphic computing field and establish a foundation for future applications in image processing, robotic vision, and biological system modeling.

     

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