GRA-TOPSIS emitter threat assessment method based on game theory

When the radiation source threat assessment is handled as a multi-attribute decision problem, the scouting party cannot obtain all the information of the enemy radiation source, the method of Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) is hard to get perfect results in dealing with "poor information", and it only considers the Euclidean distance between the indicators and cannot reflect the correlation between different indicators. Aimed at the problems of TOPSIS method, a radiation source threat assessment model based on game theory is proposed by combining Grey Relational Analysis (GRA) and TOPSIS method. On the basis of constructing the comprehensive evaluation index system of radiation source targets, Game Theory (GT) idea is used to combine the subjective weights of Interval Analytic Hierarchy Process (IAHP) and the objective weights obtained by information entropy to obtain comprehensive weights, which can greatly reduce the information loss caused by the weight alone. Based on the GRA-TOPSIS radiation source threat assessment model, a decision information system for battlefield situation is constructed. By comparing with the traditional TOPSIS method, the effectiveness of the proposed method is verified, which is helpful for sorting radiation sources more precisely and accurately.