Lockheed Martin Corporation
Real-time ship position error compensation system and method

Abstract:

A system for measuring the position of an asset is provided. The system includes a first plurality of global positioning system (GPS) sensors arranged on a first asset, and a reference position source arranged on the first asset. One or more computer processors is provided in communication with a memory and is configured to measure position data associated with the first asset from the outputs of the first plurality of GPS sensors, and calculate a measurement offset between the measured position data associated with the first asset and position data obtained from the reference position source. From these measurements, position data measurements obtained from the plurality of GPS sensors of the first asset may be corrected using the calculated measurement offset. Likewise, position data measurements obtained from a plurality of GPS sensors of a second asset, located remotely from the first asset, are also corrected using the calculated measurement offset.