A method of threat assessment for aerial combat using uncertain information

Aiming at the uncertainty of expert knowledge and situation information in aerial combat, we establish a threat assessment model based on evidence network. The geometric location relation and movement states of both sides of fighting are the two main factors considered in the model. First, the belief level conversion method and that of belief value distribution are given. Then, according to the inconsistent and uncertain attribute preference from experts, a weight optimization method between evidence is put forward. Finally, the threat level assessment of enemy aircraft is realized by network reasoning through the inputting data. The simulation results show that the threat of each enemy aircraft toward each of our aircraft is reasonably evaluated with uncertain situation information. Therefore the validity of our method, including that of the model, is verified.