Route optimization of sea test for acoustic countermeasure based on genetic algorithm

The objective to route optimization of sea test for acoustic countermeasure system is sufficiently and efficiently evaluating the countermeasure effectiveness of the system. Thus, the route design of sea test should comprehensively consider test validity, test completeness, test safety, test efficiency, tactical scenario and sea environment conditions, which is a typical multi-objective optimization problem. The assessment index system of test route optimization is proposed first, followed with the standardization method of index attributes. The Analytic Hierarchy Process (AHP) is then applied to transform the multi-objective optimization into single objective optimization problem. The typical route optimization of sea test for a surface warship using rocket-assisted decoys to defend against torpedo is taken as an illustrative example. After describing the simulation process of acoustic countermeasure and establishing the torpedo homing model and acoustic countermeasure model, a simulation method is adopted to deduce the assessment index value of test route. According to the comprehensive assessment function of sea test route, the test routes under different torpedo target angles are evaluated and evolved by genetic algorithm. The illustrative example shows the validity of the method.