Shielding effectiveness prediction method of VPX case based on genetic algorithm

The invention relates to a shielding effectiveness prediction method of a VPX case based on a genetic algorithm, and belongs to the field of electromagnetic environment effects. The shielding effectiveness of the VPX case under plane wave irradiation is analyzed and subjected to simulation modeling through CST electromagnetic simulation software, characteristic parameter matrix extraction of the VPX case is carried out through a transmission line equivalent circuit model and a genetic algorithm according to a simulation result, and the shielding effectiveness of different positions in the case is predicted. The shielding effectiveness simulation result and the algorithm theoretical calculation result are compared, the accuracy and reliability of the algorithm result are verified, the influence of the distance away from the plane wave incident plane under different frequency points on the shielding effectiveness is explored based on the extracted characteristic parameter matrix of the case, and the optimal poi