A Novel Evaluation Method of Air Target Threat Based on D Number Theory of Interval Numbers

Target threat level assessment is an important part of air defense command operations, and it plays an increasingly important role in modern air defense wars. As an act of reasoning and decision-making, threat assessment always involves many factors. Based on the consideration of multiple threat indicators, combined with D number theory and interval number, an air defense target threat assessment method is proposed in this paper. Through real-time quantification of all indicators data to generate interval numbers, the evidence under each indicator is constructed and the D number theory is applied to fuse the evidence to achieve accurate assessment of threat targets. The simulation of a set of experimental data shows the effectiveness of the proposed method.