Abstract: A method and system are provided for automatically retrieving information associated with vehicles that must sequentially pass an entrance to a secure site. Prior to the entrance to the secure site, a plurality of vehicles can be aligned in a queue having a front end located at the secure site's entrance. When a vehicle enters the queue, identifying indicia on the vehicle's license tag is automatically transmitted to one or more remotely-located databases in order to retrieve information associated with the license tag. When the vehicle reaches the front of the queue, the information so-retrieved is automatically made available in a human recognizable format to security personnel at the secure site's entrance.

Abstract: A system and method autonomously clears obstacles and mines from an approach lane. A ship is distantly located from an approach lane spanning a surf zone and beach portion, and the ship has operator control station software in an onboard computer. At least one system delivery vehicle having a storage bay and propulsion system transits from the ship to the approach lane in response to instructions from the operator control station. A line charge is disposed in each bay and has one end coupled to the system delivery vehicle. A line charge delivery vehicle in the bay is connected to another end of the line charge to pull the line charge from the bay and emplace it in a straight path in the approach lane in response to instructions from the operator control station. Explosives in all line charges are detonated to clear the approach lane.

Abstract: A system for generating an approximate GPS position of a vehicle traveling under the surface of the water includes a tether coupled to the vehicle, floatable structures coupled to the tether at spaced-apart positions therealong, a position determination system, and at least one GPS antenna provided at each floatable structure and coupled to the position determination system. The position determination system uses the GPS signals received at the GPS antenna that is nearest the vehicle to generate a global position fix that approximates a GPS position of the vehicle.

Abstract: A self-contained, self-surveying differential GPS base station system and method of operating same are provided. The system and method use a conventional differential GPS base station. The base station's National Marine Electronics Association (NMEA) data sentences identify a determined position of the base station and fix quality information associated with the determined position. The system and method automatically identify the determined position as an acceptable position when the fix quality information associated with the determined position satisfies a selected criteria which is stored on-site. The system and method then automatically average together each acceptable position to generate an updated position. The updated position is automatically supplied to the base station at a prescribed time for use by the base station in generating Radio Technical Commission for Maritime Services (RTCM) differential corrections for transmission over the air waves.