The Boeing Company

Janet Suzanne Booth

Timothy Allen Murphy

William Matthew Harris

Roger E Friedman

An interface device that enables a GNSS-based precision approach through the Ground Base Augmentation System (GBAS) function known as the GNSS Landing System (GLS) and/or through Satellite Based Augmentation Systems (SBAS) based Localizer Performance with Vertical Guidance (LPV). The GLS interface device allows a GLS-capable multi-mode receiver to be used on a non-GLS-capable airplane without extensive changes to other airplane systems. The GLS interface device works by intercepting information to and from the multi-mode receiver and modifying the information to make the interface compatible with an airplane that uses ILS guidance. Similarly, the information modifications will make the airplane appear to the multi-mode receiver as if it were a GLS-capable airplane.

Interface device and method for retrofitting an airplane with GNSS landing capability

A method and apparatus of generating navigation information for an aircraft. Satellite signals are received at a group of reference receivers at a group of locations. A level of accuracy is identified for the group of reference receivers based on satellite data formed from the satellite signals. It is indicated when the group of locations of the group of reference receivers does not meet a desired level of accuracy. Messages are generated using the navigation information from the satellite data when the group of reference receivers has the desired level of accuracy.

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Snohomish, WA, United States of America

Janet Suzanne Booth