local area augmentation system

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local area augmentation system (LAAS)

The augmentation to the global positioning system (GPS) to meet Cat I, Cat II, and CAT III precision approach accuracy, integrity, continuity, and availability requirements. The system is ground-based and comprises a ground reference station at or near an airport. The airborne system has only a top incorporate differential correction capability as well as a link with the ground reference station for receiving correctional data. Also known as DGPS (differential global positioning system) and ground-based augmentation system (GBAS). See differential GPS.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Much like our soon-to-be-released (or not) Local Area Augmentation System, JPALS uses differential GPS for navigation.
AGATE uses GPS satellites, Local Area Augmentation Systems (LAAS) and Wide Area Augmentation Systems (WAAS) to track each aircraft at all times.
For aircraft precision approach, local area augmentation systems (LAAS) will be installed, which may include airport pseudolites (APL) that broadcast GPS-like ranging signals from the ground.

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