Analysis Of Anti-jamming Performance Evaluation Index Of Infrared Guidance System Based On Analytic Hierarchy Process

In order to evaluate the anti-jamming performance of the infrared guidance system objectively and quantitatively,the anti-jamming performance of the infrared guidance system is divided into three aspects: detection capability,anti-jamming ability and reintercepting ability,according to the anti-interference principle and working process of the infrared guidance system.The detection ability depends on the sensor parameters and the target background radiation characteristics.Anti-jamming ability depends on the anti-jamming ability and anti-jamming tracking ability.Re-intercept capability depends on the search detection performance and bomb position information,and ultimately we get nineteen indicators as infrared anti-jamming performance evaluation index system,and for the application background,based on the AHP method to establish the corresponding anti-jamming evaluation model.In order to determine the judgment matrix in the traditional analytic hierarchy process(AHP),the expert evaluation method is used to study the objective method of judging the weight of the subject,and the method of determining the weight of the judgment object is studied.For the model and the non-model And the judgment matrix based on multi-factor and multi-level test is put forward based on theoretical analysis and calculation.In the method of determining the weight of the judgment matrix based on the theoretical analysis,the theoretical analysis model between the model parameters such as the sensor parameters,the target background radiation characteristics,the search detection performance and the bomb position information and the target detection performance index is established.According to the graph,the average influence level of each factor on the target discovery ability is calculated.The ratio of the average influence level indicates the relative importance of the two factors,and the judgment matrix is established accordingly.In the method of determining the weight of the judgment matrix based on multifactor and multi-level test,the influencing factors such as anti-jamming ability and antijamming ability are analyzed respectively,and the trend of detection performance changes with each factor,Factor test,the linearity of the single factor influencing the target detection rate curve is obtained by straight line fitting,and the judgment matrix is established according to the change speed.Finally,the influence of the lowest level index on the anti-jamming performance of the infrared guidance system is calculated.The results of this evaluation are consistent with the influence of the various indicators in the common sense on the antijamming performance of the infrared guidance system,so that the infrared guidance system can better guide the infrared guidance system Design,improve its antiinterference ability.