The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2022
Filed:
Apr. 12, 2020
Thomas Howard Jaeckle, San Antonio, TX (US);
Wayne D. Music, San Antonio, TX (US);
Donald R. Van Rheeden, San Antonio, TX (US);
Thomas Tillotson, Greenville, TX (US);
Jeffery C. Sanders, Dallas, TX (US);
Thomas Howard Jaeckle, San Antonio, TX (US);
Wayne D. Music, San Antonio, TX (US);
Donald R. Van Rheeden, San Antonio, TX (US);
Thomas Tillotson, Greenville, TX (US);
Jeffery C. Sanders, Dallas, TX (US);
Southwest Research Institute, San Antonio, TX (US);
Abstract
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.