Orbit ephemeris monitors for local area differential GPS

Author

Pervan, Boris ; Gratton, Livio

Author_Institution

Dept. of Mech. Mater. & Aerosp. Eng., Illinois Inst. of Technol., Chicago, IL, USA

Volume

41

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

449

Lastpage

460

Abstract

Methodologies sufficient to monitor GPS satellite orbit ephemeris for category I aircraft precision approach navigation are described. In the absence of a satellite maneuver, it is shown that a monitor based on the projection of previously validated ephemeris parameters is adequate to meet navigation integrity and availability requirements. After scheduled stationkeeping maneuvers, no previously validated ephemerides are available, so a measurement-based method is required. The feasibility of such a monitor is also established.

Keywords

Global Positioning System; aircraft landing guidance; GPS satellite orbit ephemeris; category I aircraft precision approach navigation; ephemeris parameters; local area differential GPS; navigation availability; navigation integrity; orbit ephemeris monitors; Aircraft navigation; Antenna measurements; Computer vision; Error correction; Extraterrestrial measurements; FAA; Global Positioning System; Satellite broadcasting; Satellite navigation systems; Space vehicles;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2005.1468740

Filename

1468740