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A model of high power microwave (HPM) with multiple parameters is brought forward, a calculation method of electromagnetic transmission rate and reflectivity is proposed, a finite-difference time-domain (FDTD) film algorithm is set forth, a shielded cockpit glass construction is designed by a new flow, and protective effect analysis on military aircraft's cockpit against HPM is carried out on a 3D plane, airborne equipments and pilot model with a scale of 1:1. The simulation tests show the soft kill protective efficiency in the range of carrier frequencies and protective limits of the glass construction with incident angles.

A simplified parallel finite difference time domain algorithm is brought out based on 1-ranked Debye equation by nonlinear levenberg-marquardt least-squares curve fitting method. A safety threshold with respect to spatial average and spatial peak specific absorption (SA) is proposed, a shielded cockpit glass construction is designed, and specific absorption calculation for pilot in an aircraft is carried out on 3D model with a scale of 1:1, which is electrically huge and very complex in geometry and electromagnetic parameters. The simulation tests show that the shielded cockpit is protective effective in the range of 0.3-6GHz by avoiding resonance frequency of human body and speedup ratio of the presented approach can compare with that of the conventional method.