Systems and methods for position determination in gps-denied situations
AssigneeElbit Systems of America, LLC
InventorEnrique SERNIK
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Abstract
A method for calculating a position of a receiver. The method includes determining a first position of the receiver at a first time using data from satellites and determining a second position of the receiver at a second time using the first position and data from a non-satellite sensor. The method also includes calculating the positions of the satellites at the second time and comparing, for each satellite, the calculated position with a known position at the second time.
Claims19
A method for calculating a position of a receiver, the method comprising:
- determining a first position of the receiver at a first time using data from satellites;
- determining a second position of the receiver at a second time using the first position and data from a non-satellite sensor;
- calculating the positions of the satellites at the second time;
- and
- comparing, for each satellite, the calculated position with a known position at the second time.
A system comprising:
- a processor;
- a satellite receiver coupled to the processor;
- a non-satellite sensor coupled to the processor;
- and
- a memory coupled to the processor, the memory storing a program that, when executed by the processor, causes the processor to:
- determine a first position of the system at a first time using data of multiple satellites generated by the satellite receiver;
- determine a second position of the system at a second time using the first position and data generated by the non-satellite sensor;
- calculate the positions of the satellites associated with at the second time;
- and
- compare, for each satellite, the calculated position with a known position at the second time.
A non-transitory, computer-readable medium containing instructions that, when executed by a processor, cause the processor to:
- determine a first position of the system at a first time using data of multiple satellites generated by the satellite receiver;
- determine a second position of the system at a second time using the first position and data generated by the non-satellite sensor;
- calculate the positions of the satellites associated with at the second time;
- and
- compare, for each satellite, the calculated position with a known position at the second time.
Dependencies are inferred from the claim text.