A novel approach to evidence combination in battlefield situation assessment using Dezert-Smarandache theory

Situation assessment, which belongs to high level information fusion, plays an important role in military decision-making systems. In order to combine the fuzzy evidence in situation assessment, a novel approach based on Dezert-Smarandache theory(DSmT) is described in this paper. The model of fuzzy synthetic judgement is constructed to estimate the intension of force group. The characteristics of force group, including the speed, the distance and the direction, are mapped into fuzzy sets and taken as the inputs of the model. Then the results of estimation between two consecutive time moments are combined based on DSmT. Finally, a simple application is illustrated and the comparison between DSmT and Dempster-Shafer theory is given.