Method and device for analyzing controllability of structured network with MIMO (Multiple Input Multiple Output) subsystem

The invention relates to a method and a device for analyzing the controllability of a structured network with an MIMO (Multiple Input Multiple Output) subsystem. The method comprises the following steps: establishing a structured network system with an MIMO node subsystem; judging whether a node subsystem is controllable or not, if so, extracting underlying structure information based on the network structure information, and judging whether an underlying network topological graph can be dyed weakly by utilizing a weak dyeing mechanism of a directed graph, if so, judging whether the pattern matrix is associated with the directed graph and whether the pattern matrix can be dyed, and if not, judging that the structured network system cannot be controlled; if yes, the structured network system can be controlled. According to the method, a mathematical model suitable for a structured network with a multiple-input-multiple-output (MIMO) node system is established, so that the problem of inaccurate controllability