This system is characterized by small size and weight. It measures precisely the speed of the platform on which it is installed. Therefore, it can contribute to the creation of an independent navigation system. Thanks to this feature, the helicopter, which represents the reference platform for this system, is able to navigate without other ground or satellite systems. It can work in environments that are not preset to air navigation. Its use is particularly important for those helicopters that have to fly over seas, lakes and rivers, since it allows the platform to hover, compensating for the natural movement of the over-flown surface.