SYSTEM AND METHOD FOR OPTIMAL TIME, POSITION AND HEADING SOLUTION THROUGH THE INTEGRATION OF INDEPENDENT POSITIONING SYSTEMS
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United States of America Patent
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app pub date -
Feb 10, 2010
filing date -
Aug 10, 2007
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Abandoned
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Abstract
A system for, and method of, blending (or integrating) pseudo-range or position measurements and bearing-to-transmitter measurements from an eLORAN or LORAN-C receiver and position (alternatively, pseudo ranges) and velocity (alternatively pseudo-range rate) measurements from a GPS receiver. The described system can also be integrated with additional external positioning systems. In the context of an inertial navigation system (INS) application, this combined GPS/LORAN signal can be employed to provide external positioning solutions, potentially integrated with measurements from devises such as accelerometers, gyroscopes, altimeters, etc. The system includes a GPS signal input, a LORAN signal input, preprocessors for each, and an integrator to combine the two preprocessed signals to estimate errors in the full trajectory variables.
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