Modelo Empírico-Estatístico de Canal para Comunicações em Minas Subterrâneas

This paper presents an empirical-statistical model for the TTE propagation channel based on measurements performed in coal mines. The model uses normalized magnetic field data to characterize the behavior of the median propagation loss as a function of depth and frequency, as well as the equivalent conductivity and its probability distribution. It also proposes a model of the median behavior of optimal operating frequency depending on depth that can be used as the initial configuration parameter in TTE communication systems.