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. 17, 2018
Filed:
Nov. 20, 2014
Honeywell International Inc., Morristown, NJ (US);
James Arthur McDonald, Minneapolis, MN (US);
Tom Jakel, Minneapolis, MN (US);
Kim A. Class, Andover, MN (US);
Honeywell International Inc., Morris Plains, NJ (US);
Abstract
GBAS includes reference receivers, processing module, and communication device. Processing module checks GNSS satellite measurements to determine proximity of GNSS satellite measurement's IPP to IGPs derived from SBAS geostationary satellites. Processing module determines that GNSS satellite measurement is safe for mitigation using overbounded Vertical Ionosphere Gradient standard deviation sigma-vig (σ) when IGPs possess acceptable GIVE values. Processing module determines whether number of GNSS satellite measurements determined safe for mitigation using σare able to produce VPL that meets VAL required for precision approach. Communication device communicates overbounded σalong with differential corrections and indication of which GNSS satellite measurements that are safe for mitigation using at least one overbounded σare able to produce VPL that meets VAL required for precision approach to GNSS receiver when number of GNSS satellite measurements determined safe for mitigation using overbounded σare able to produce VPL that meets VAL required for precision approach.