Integer-arithmetic FDTD codes for computer simulation of internal, near and far electromagnetic fields scattered by three-dimensional conductive complicated form bodies Original Research Article

This paper describes programs EMP3DINT and RES3DINT. These software packages allow numerical modeling of diffraction of electromagnetic fields of various origins (EMP, lightening discharge fields, radio waves, industrial noises, etc.) on three-dimensional conductive complicated form objects (aircrafts, missiles, satellites, etc.). The specific features of using integer arithmetic in FDTD computations are discussed. Examples of the software applications and comparisons of computer simulation results with exact analytical solutions and with experimental data are presented.