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AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorsScott W. Stadelmann, Brian J. Herting, Noah J. Banwarth
Estimating the term…
Techniques for direction finding and geolocation of a GPS spoofer. A methodology implementing the techniques according to an embodiment includes steering a beam in a direction selected from a search constellation and measuring a first signal power received through the steered beam. The method also includes steering a null in the selected direction and measuring a second signal power received through the steered null. The method further includes calculating a difference between the first signal power and the second signal power and estimating an angle of arrival (AOA) of the GPS spoofer signal as the selected direction if the calculated difference exceeds a threshold power value. In some such examples, the method includes accumulating signals having four similar estimated AOAs, associated with unique pseudo-random noise codes, and employing a GPS receiver to calculate a candidate position of a source of the GPS spoofer signals based on the accumulated signals.
A computer program product including one or more non-transitory machine-readable mediums encoded with instructions that when executed by one or more processors cause a process to be carried out for locating a global positioning system (GPS) spoofer, the process comprising:
A system for locating a global positioning system (GPS) spoofer, the system comprising:
A method for locating a global positioning system (GPS) spoofer, the method comprising:
Dependencies are inferred from the claim text.