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:
Jul. 28, 2015
Filed:
Oct. 28, 2013
Patrick Y. Hwang, Cedar Rapids, IA (US);
Patrick Y. Hwang, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A system and method are disclosed for autonomous authentication of a received signal based on characteristics of the signal. The method receives, acquires and tracks a signal to first determine if a carrier clock phase variable associated with the signal meets a phase consistency threshold. If so, the signal is labeled authentic and configured for output to a positioning system. Second and optionally, the system may determine if a data set measurement associated with a unique satellite identification of the signal meets a data set threshold. If not, the signal is labeled as inconsistent and discarded. The system and method continuously monitors the signal for consistency as well as authenticity based on the data set threshold and the phase consistency threshold. Should any tracked signal fall below either threshold, the signal is discarded from the possible positioning solution.