We examine the size of things that move and shake, from the whisper of a lover to the crunch of tectonics. Barely audible, a whisper at the threshold of human hearing produces a “zero dB” sound pressure level (SPL), according to convention.
Electromagnetic compatibility of wireless communications and sensor networks with mission critical electronic equipment is assessed for below-deck spaces on ships and submarines. With intentional wireless emission of radio-frequency (RF) energy into the reverberant spaces, it is necessary to measure and characterize the statistical electromagnetic environment (EME) and to predict maximum electric field strengths to a specified confidence level.
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