With the air defense system developed in networking and comprehensiveness,air offensive operation is facing more and more severe threat and the suppression and destruction of enemy air defences operations are significant but highly risky.Therefore,the United States and other countries developed the equipment such as air-launched decoy,which has played significant role in several typical wars in the end of 20th century.This paper takes the efficacy evaluation of a certain air-launched decoy as research object,aiming to some shortcomings existing in conventional fuzzy analytical hierarchy process,and puts forward improvement measures in terms of expert investigation,compare scaling,judgment matrix,weight calculation and fuzzy membership matrix so that the objectivity and scientific nature of the evaluation method is further enhanced.
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