Abstract: Position reference system and method for positioning and tracking one or more objects which in addition to range and azimuth also provides the elevation angle of the target relative to the instrument axes of the sensor platform. The system and method is based on a near IR laser radar transceiver and one or more active or passive retroreflectors placed on the objects to be positioned. The present invention further includes an internal beam stabilization mechanism protected from the environment and utilize a cylindrical window which is transparent for the near IR laser radiation, but absorbs all visible and UV radiation and thus protects the optical parts from ambient solar radiation. In addition, the cylindrical window protects all internal mechanical parts, notably the rotating and moving parts, from a corrosive and freezing/icing environment.

Abstract: Position reference system and method for positioning and tracking one or more objects which in addition to range and azimuth also provides the elevation angle of the target relative to the instrument axes of the sensor platform. The system and method is based on a near IR laser radar transceiver and one or more active or passive retroreflectors placed on the objects to be positioned. The present invention further includes an internal beam stabilization mechanism protected from the environment and utilize a cylindrical window which is transparent for the near IR laser radiation, but absorbs all visible and UV radiation and thus protects the optical parts from ambient solar radiation. In addition, the cylindrical window protects all internal mechanical parts, notably the rotating and moving parts, from a corrosive and freezing/icing environment.

Abstract: Method and system for positioning an antenna (11), telescope, aiming device or similar, arranged to a movable platform (13) in a dome (12) or a part of a dome (12), said dome (12) having an interior surface (15) and/or is provided with a screen. The method and system are arranged to arrange or provide one or more patterns (40) or rasters at an interior surface (15) of a dome (12) or a screen arranged in the dome (12), for thereupon recording and analyzing the patterns/rasters (40) to calculate the accurate position of the antenna (11), telescope, aiming device or similar, and in this way highly accurate determination of position of the aiming direction (14) of the antenna (11), telescope, aiming device or similar.