Abstract
Aiming at diagnostic problem of Aircraft gun fire control system, a diagnostic method based on multi-signal flow graph model and information entropy was proposed. Firstly, according to analysis of aircraft gun fire control system's function, its multi-signal flow graph model was built. Then the fault-test dependency matrix was got. Finally the optimal diagnostic strategy was calculated based on information entropy. The experiment validates that aircraft gun fire control system could be diagnosed at the least test cost by the proposed method.
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