Abstract
In solving collision avoidance problem of two vessels in close-quarter situation, differential game theory is introduced to investigate anti-collision strategy in close-quarter situations. Mathematical model using differential game theory for collision avoidance is formulated. The collision avoidance problem in urgent situation is converted into differential games problem. By differential games method, the optimal controlling strategies for the two vessels are deducted from the mathematical model. Numerical simulation of various meeting situations is performed. The research indicates that the controlling strategy is optimal when they have the same acceleration direction. It is also shown that difFerential game theory is an effective tool in dealing with collision avoidance problems.
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