Time-Domain Modeling of Noisy Electromagnetic Field Propagation

An efficient method for the numerical time-domain (TD) simulation of near- and far-field propagation of stochastic electromagnetic fields is presented. The method is based on the transformation of field correlation dyadics using TD Green’s functions computed for deterministic fields. It accounts for arbitrary correlations between the noise radiation sources and allows to compute the spatial distribution of the spectral energy density of noisy electromagnetic sources. Numerical examples, demonstrating the strong influence of the correlation between the sources on the spatial distribution of the radiated noise field are presented.