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:
Sep. 05, 2017
Filed:
Oct. 09, 2013
Applicant:
Exelis Inc., McLean, VA (US);
Inventor:
Michael L. Broussalian, Moorpark, CA (US);
Assignee:
Exelis Inc., McLean, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/21 (2010.01); G01S 19/01 (2010.01);
U.S. Cl.
CPC ...
G01S 19/215 (2013.01); G01S 19/015 (2013.01);
Abstract
Embodiments are generally directed to anti-spoofing techniques for satellite navigation systems. In general, the anti-spoofing techniques use codeless or semi-codeless tracking of encrypted satellite signals to generate measurements that can be used to perform consistency checks to received non-encrypted signals. The consistency checks will detect if the non-encrypted signal is a genuine satellite signal or a spoofing signal.