Precise Tracking Positions of a Submarine Vehicle

Using autonomous submarines for examination of sea bottom and underwater installations, also exploration of mineral deposits in shelf and hydrographical survey requires positioning of extended accuracy. The above implicates a necessity of developing a precise method of navigation and programme of working out the observational data. The commonly used radio navigation systems are useless in this case, as radio waves do not spread in water. Alternative inertial systems still prove inefficient accuracy. This is the reason why at present, more often, construction of underwater navigational systems on the model of radio navigational ones has been held forth. Another idea in this field is carrying out survey using various techniques and working out jointly the survey results on-board. Such a method allows improving accuracy of positioning.