For the problem ofmultiaircraft cooperative suppression interference array (MACSIA) against the enemy air defense radar network\nin electronic warfaremission planning, firstly, the concept of route planning security zone is proposed and the solution to get the\nminimum width of security zone based on mathematical morphology is put forward. Secondly, the minimum width of security\nzone and the sum of the distance between each jamming aircraft and the center of radar network are regarded as objective function,\nand the multiobjective optimization model of MACSIA is built, and then an improved multiobjective particle swarm optimization\nalgorithm is used to solve the model. The decomposition mechanism is adopted and the proportional distribution is used to\nmaintain diversity of the new found nondominated solutions. Finally, the Pareto optimal solutions are analyzed by simulation,\nand the optimal MACSIA schemes of each jamming aircraft suppression against the enemy air defense radar network are obtained\nand verify that the built multiobjective optimization model is corrected. It also shows that the improved multiobjective particle\nswarm optimization algorithm for solving the problem of MACSIA is feasible and effective.
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