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:
Feb. 10, 2026
Filed:
Nov. 17, 2022
Honeywell International Inc., Charlotte, NC (US);
Blaise G. Morton, Minnetonka, MN (US);
Vibhor L. Bageshwar, Rosemount, MN (US);
Honeywell International Inc., Charlotte, NC (US);
Abstract
A system to detect spoofing or jamming of GNSS signals comprises a GNSS receiver onboard a vehicle; an onboard INS and an IMU for producing vehicle inertial measurements; and an onboard processor that receives data outputs from the GNSS receiver and INS. The processor performs a method comprising computing a time-averaged GNSS-derived acceleration estimate for the vehicle based on TDCP measurements received from the GNSS receiver; computing a time-averaged INS-derived acceleration estimate for the vehicle based on inertial measurements; producing a time-varying threshold, indicative of a spoofing or jamming event, based on a user-specified probability of false alarm or probability of missed detection; obtaining a difference between the time-averaged GNSS-derived acceleration estimate and the time-averaged INS-derived acceleration estimate; determining whether a magnitude of the difference is greater than the time-varying threshold; and generating a spoofing or jamming alert when the magnitude of the difference is greater than the time-varying threshold.