Principles of statistical physics as applied to EMC

This paper examines the applications of statistical physics-stochastic processes, ergodic principles, the use of nonlinear dynamic state equations and chaos, and the Wiener-Khintchine theorem to better explain how Intentional ElectroMagnetic Interference (IEMI) disrupts the performance of feedback and hybrid electronic systems such as control systems, power electronics and SCADAs. The origin of spurious “almost-random” voltage fluctuations induced within a complicated enclosure when exposed to EM fluences is explained, and a mathematical formulation to quantify the energy coupled into a complicated cavity under High Power Microwave stress is derived.