Advanced science.  Applied technology.


Discriminating and Mitigating SNS Spoofing Signals: 11,300,687


A system and method for discriminating and mitigating spoofing signals incoming to a satellite navigation system. Beam steering techniques are used to steer a null toward a legitimate satellite signal that is being spoofed. The spoofing signal is then tracked and its angle of arrival measured. A null is steered toward the measured angle of arrival of the spoofing signal, and the spoofing signal is confirmed by determining if there is a signal remaining with nulls on both the legitimate satellite signal and the spoofing signal. The null toward the legitimate satellite signal is then replaced with unity gain.

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Thomas Howard Jaeckle; Wayne D. Music; Donald R. Van Rheeden; Thomas Tillotson; Jeffery C. Sanders