US Patent No. 10,509,130

POSITIONING, NAVIGATION, AND TIMING DEVICE INTERFERENCE AND SPOOFING DETECTOR WITH TIMING MITIGATION


Patent No. 10,509,130
Issue Date December 17, 2019
Title Positioning, Navigation, And Timing Device Interference And Spoofing Detector With Timing Mitigation
Inventorship Arthur L. Snyder, Spotsylvania, VA (US)
Erik T. Lundberg, Cambridge, MA (US)
Keith F. McDonald, Lincoln, MA (US)
Michael L. Cohen, McLean, VA (US)
Assignee The MITRE Corporation, McLean, VA (US)

Claim of US Patent No. 10,509,130

1. A method comprising:receiving a radio frequency (RF) signal from an antenna associated with a positioning, navigation and timing (PNT) device;
splitting the RF signal into a plurality of RF data signals, comprising at least a first RF data signal and a second RF data signal, wherein the plurality of RF data signals are replicates of the RF signal;
sending the first RF data signal to a first processing device and the second RF data signal to a second processing device, wherein the first and second processing devices are configured to assist in detection and mitigation of an adversarial attack and wherein the first processing device is configured to output the first data signal to a time and frequency subsystem;
detecting, by the second processing device, an anomaly associated with the second RF data signal;
transmitting, by the second processing device to a switch-control logic mechanism, a signal in response to detecting the anomaly associated with the second RF data signal;
transmitting, by the switch-control logic mechanism to the first processing device, a cutoff signal responsive to receiving the signal; and
terminating, by the first processing device, the output of the first RF data signal to the time and frequency subsystem based on the cutoff signal.