SYSTEM AND METHOD FOR OPTIMAL TIME, POSITION AND HEADING SOLUTION THROUGH THE INTEGRATION OF INDEPENDENT POSITIONING SYSTEMS
First Claim
1. A system to assist in optimizing position, velocity and heading determinations by integrating range measurements from a LORAN signal source and measurements from a GPS signal source, the system comprising:
- a. a first input for receiving one or more signals from the LORAN signal source;
b. a second input for receiving one or more signals from the GPS signal source; and
c. a computing device including an integrator coupled to the first input and to the second input, wherein the integrator is configured to generate outputs associated with the first input and the second input to provide a best estimate of one or more position, velocity and bearing indicators based on information received from the LORAN signal source and the GPS signal source over time.
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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.
40 Citations
16 Claims
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1. A system to assist in optimizing position, velocity and heading determinations by integrating range measurements from a LORAN signal source and measurements from a GPS signal source, the system comprising:
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a. a first input for receiving one or more signals from the LORAN signal source; b. a second input for receiving one or more signals from the GPS signal source; and c. a computing device including an integrator coupled to the first input and to the second input, wherein the integrator is configured to generate outputs associated with the first input and the second input to provide a best estimate of one or more position, velocity and bearing indicators based on information received from the LORAN signal source and the GPS signal source over time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification