With the development of test technology, the kinds of test resources continuously abundant, while the increased flexibility of a test system provides a greater number of choices of resources and routings. So, test task scheduling optimization will be the key point to construct the aerospace test system. This paper put forward the method of aerospace test task scheduling based on improved genetic algorithm. The typical aerospace test tasks and signals were analyzed; Describing the test requirements and instrument ability based on signal-oriented method; A kind of improved genetic algorithm was put forward, and the optimization matching of test resources was realized, the validity of this algorithm was proved through the simulation and experiment of an example. Comparing the algorithm with the polychromatic ant colony algorithm, the advantage of the algorithm was displayed.
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