Analysis of Aerial Targets Threat Degree in Air Defense System

In modern air defense system, arranging the aerial targets in order of threat degree makes a significant impact in battlefield. Firstly it constructs the index system of threat evaluation and quantitates every index based on fuzzy membership function. Secondly it sets up comprehensive difference matrix in order to improve the sensitivity and accuracy of threat degree calculation. Thirdly it calculates and arranges the aerial targets threat degree value in an order with method of grey relational analysis. Finally, with contribution degree that computed by adding the threat degree value to the matrix with method of grey relational analysis, we can gain the weight coefficient value of every index. The experiment result shows that the evaluation result of using weighted average method based on grey rational analysis theory and expectation threat degree order which is given by experts are totally unanimous.