Critical aspects of electromagnetic compatibility on board ships

Abstract

The electromagnetic environment on board a military ship is a bounded space with disturbance sources and receivers. It is defined by the maximum disturbance levels in each interior compartment and on the ship's decks. The electromagnetic environment on board a ship is extremely complex, as it depends to a large extent on the density of equipment on board, the characteristics of the equipment installed (frequency bands, power, modulation types, etc.), the measures to prevent electromagnetic radiation pollution taken by designing the ship in such a way that the electromagnetic field strength inside the ship is as low as possible, with reduced risks to the normal operation of the equipment on board and to the personnel on board. The installation of radars in the on-board electromagnetic environment requires an analysis of the electromagnetic compatibility standards that apply to them. To prevent electromagnetic interference in such systems involves describing the composition of the environment and the interaction between different components. The paper presents a risk-based characterisation of the on-board electromagnetic environment for electromagnetic compatibility analysis.