Abstract:

Establishing the model of flight combat mission is the basis of applying situation assessment, fault diagnosis and other technologies as well as predicting and evaluating the pilot’s behavior. Workflow net is applied to model the tactical bomb mission, one of the flight combat missions. Since the traditional Petri net is unable to represent the influence of the changing situation on the pilot’s behavior, the hierarchical Petri net with nonhomogeneous arcs is designed to model the workflow net of tactical bomb mission enabling the average firing rate of subnet’s transition to change with the status of the fight course, and the method which proves the rationality of the workflow net by using the reachability theorem is given. In the subnet, the λ varying stochastic Petri net is designed to model the workflow net of the process of executing missions by the pilot, the model is used to analyze the probability of steady working state and the result can be used to predict and evaluate the behavior of the pilot in the future.