摘要
The topological structure of a complex dynamical network plays a vital role in determining the network＇s evolutionary mecha- nisms and functional behaviors, thus recognizing and inferring the network structure is of both theoretical and practical signif- icance. Although various approaches have been proposed to estimate network topologies, many are not well established to the noisy nature of network dynamics and ubiquity of transmission delay among network individuals. This paper focuses on to- pology inference of uncertain complex dynamical networks. An auxiliary network is constructed and an adaptive scheme is proposed to track topological parameters. It is noteworthy that the considered network model is supposed to contain practical stochastic perturbations, and noisy observations are taken as control inputs of the constructed auxiliary network. In particular, the control technique can be further employed to locate hidden sources （or latent variables） in networks. Numerical examples are provided to illustrate the effectiveness of the proposed scheme. In addition, the impact of coupling strength and coupling delay on identification performance is assessed. The proposed scheme provides engineers with a convenient approach to infer topologies of general complex dynamical networks and locate hidden sources, and the detailed performance evaluation can further facilitate practical circuit design.
基金
supported by the National Science and Technology Major Project of China(Grant No.2014ZX10004001-014)
the National Natural Science Foundation of China(Grant Nos.61573262,61532020&11472290)
the Fundamental Research Funds for the Central Universities(Grant No.2014201020206)
作者简介
Corresponding authors email： xqwu@whu.edu.cnCorresponding authors email：hfeng.math@whu.edu.cnCorresponding authors email：jhlu@iss.ac.cn
