Method for high-intensity radiated field (HIRF) and electromagnetic pulse (EMP) analysis of a vehicle

A system for modeling electromagnetic characteristics of a vehicle, the system comprising:

• a memory;
• one or more processors;
• a non-transitory computer-readable medium in the memory, the computer-readable medium storing instructions that, when executed by the one or more processors, cause the system to perform operations comprising:
• generating a parallel plate waveguide model having a first waveguide port and a second waveguide port;
• inserting a vehicle model for the vehicle within the parallel plate waveguide model, wherein the vehicle model has a plurality of lumped ports corresponding to electrical components on-board the vehicle;
• executing an electromagnetic field solver on the first waveguide port, the second waveguide port, and the plurality of lumped ports, wherein the electromagnetic field solver produces a first output data;
• determining a scaling factor between a first power level configured to excite the first waveguide port and the second waveguide port, and a second power level configured to excite the plurality of lumped ports;
• producing a scattering parameter (S-parameter) model for the vehicle from the first output data, wherein the S-parameter model includes a plurality of S-parameter ports;
• generating a plurality of excitation signals at the plurality of S-parameter ports, wherein the scaling factor has been applied to the plurality of excitation signals;
• and
• executing a time-domain circuit simulation to model the electromagnetic characteristics of the vehicle.