Kongsberg has now developed a new DP reference product
, the HAIN Positioning Reference system, based on Integration of Acoustic Positioning and Inertial Navigation principles.
Acoustic and Inertial positioning principles in combination are ideal, since their qualities complement each other. Acoustic positioning is characterised by relatively high and evenly distributed noise and no drift in the position, while Inertial positioning has very low short-term noise and relatively large drift in the position over time.
The HAIN Positioning Reference system is very easy to install; a standard Kongsberg computer onboard the vessel interfaces the small Inertial Measurement Unit
and the Acoustic Positioning system (HiPAP or HPR).