Abstract:

In this paper, the problem of coplanar variable-:peed interception between a tactical missile and an aircraft is analysed by using the differential games theory. A unified approximate guidance law in feedback form is obtained by using the technique of forced singular perturbation（FSPT）. The illustrative example with the realistic aerodynamic and propulsion data shows that this subopimal guidance control law is available for the practical applications.

Key words: two-player zero-sum games, nonlinear differential games, singular perturbation, feedback control strategies