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==WAAS==
==WAAS==


[[File:waas_log.gif|right|100px|thumb]]
[[File:waas_logo.gif|right|100px|thumb]]


The WAAS was jointly developed by the United States Department of Transportation (DOT) and the Federal Aviation Administration (FAA), beginning in 1994, to provide performance comparable to category I instrument landing system (ILS) for all aircraft possessing the appropriately certified equipment.<ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System Wide Area Augmentation System]</ref>
The WAAS was jointly developed by the United States Department of Transportation (DOT) and the Federal Aviation Administration (FAA), beginning in 1994, to provide performance comparable to category I instrument landing system (ILS) for all aircraft possessing the appropriately certified equipment.<ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System Wide Area Augmentation System]</ref>
The following figure shows an overview of the WAAS system.
[[File:waas_architecture.png|WAAS overview|center|500px|thumb]]


==Notes==
==Notes==

Revision as of 23:23, 31 March 2011


FundamentalsFundamentals
Title SBAS Systems
Author(s) GMV
Level Basic
Year of Publication 2011
Logo GMV.png


SBAS systems are spreading out all over the world. More and more, it is believed that upon dual-frequency SBAS service provision, a seamless navigation will be possible from and to any two locations in the world.

From all the SBAS systems in the world, three are already operational –WAAS, MSAS, EGNOS– , two are under implementation –GAGAN, SDCM– while the rest are under feasibility studies –SACCSA, AFI.

Some SBAS systems either operational, development or feasibility study.

WAAS

Waas logo.gif

The WAAS was jointly developed by the United States Department of Transportation (DOT) and the Federal Aviation Administration (FAA), beginning in 1994, to provide performance comparable to category I instrument landing system (ILS) for all aircraft possessing the appropriately certified equipment.[1]

The following figure shows an overview of the WAAS system.

WAAS overview

Notes


References