Pattern deformation of a marine communications antenna on board a frigate during a helicopter approach application of the Geometrical Matrix Recycling Method (GMRM)

The aim of this paper is to present an application of the geometrical matrix recycling method (GMRM) for a time-variant ship and helicopter arrangement. The ship is equipped with a communication antenna. During the approach of a helicopter the influence of its location related to the ship on the antenna diagram is studied by help of the geometrical matrix recycling method.