Satellite-Based Augmentation Systems

E586572

Global Navigation Satellite System augmentation technology Navigation infrastructure Safety-critical positioning system

Satellite-Based Augmentation Systems are regional or wide-area systems that enhance standard GPS signals to provide more accurate, reliable, and integrity-checked positioning for aviation and other safety-critical applications.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Wide Area Augmentation System	2
Satellite-Based Augmentation Systems canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T6327681 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Satellite-Based Augmentation Systems
Context triple: [Differential GPS, relatedTo, Satellite-Based Augmentation Systems]

A. Global Navigation Satellite System Infrastructure
Global Navigation Satellite System Infrastructure is the worldwide network of satellites, ground stations, and control systems that enables precise positioning, navigation, and timing services for users across the globe.
B. Positioning, Navigation, and Timing
Positioning, Navigation, and Timing is a U.S. Space Force mission area focused on providing precise location, navigation, and time-reference services—most notably through systems like GPS—to military and civilian users worldwide.
C. Precise Positioning Service
Precise Positioning Service is Galileo’s high-accuracy satellite navigation offering that delivers centimeter-level positioning for professional and commercial applications.
D. Differential GPS
Differential GPS is an enhanced positioning system that improves the accuracy of standard GPS signals by using ground-based reference stations to correct signal errors.
E. Gee navigation system
The Gee navigation system was an early British radio navigation aid used during World War II to help Allied aircraft determine their position and improve bombing accuracy.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Satellite-Based Augmentation Systems
Target entity description: Satellite-Based Augmentation Systems are regional or wide-area systems that enhance standard GPS signals to provide more accurate, reliable, and integrity-checked positioning for aviation and other safety-critical applications.

A. Global Navigation Satellite System Infrastructure
Global Navigation Satellite System Infrastructure is the worldwide network of satellites, ground stations, and control systems that enables precise positioning, navigation, and timing services for users across the globe.
B. Positioning, Navigation, and Timing
Positioning, Navigation, and Timing is a U.S. Space Force mission area focused on providing precise location, navigation, and time-reference services—most notably through systems like GPS—to military and civilian users worldwide.
C. Precise Positioning Service
Precise Positioning Service is Galileo’s high-accuracy satellite navigation offering that delivers centimeter-level positioning for professional and commercial applications.
D. Differential GPS
Differential GPS is an enhanced positioning system that improves the accuracy of standard GPS signals by using ground-based reference stations to correct signal errors.
E. Gee navigation system
The Gee navigation system was an early British radio navigation aid used during World War II to help Allied aircraft determine their position and improve bombing accuracy.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	Global Navigation Satellite System augmentation technology ⓘ Navigation infrastructure ⓘ Safety-critical positioning system ⓘ
broadcasts	Correction messages ⓘ Integrity information ⓘ Ionopheric delay corrections ⓘ Satellite clock corrections ⓘ Satellite ephemeris corrections ⓘ
category	Space-based augmentation systems ⓘ
comparedWith	Aircraft-Based Augmentation Systems ⓘ Ground-Based Augmentation Systems NERFINISHED ⓘ
conformsTo	International Civil Aviation Organization SARPs NERFINISHED ⓘ RTCA DO-229 MOPS NERFINISHED ⓘ
designedFor	Safety-of-life services ⓘ
enables	Approach with vertical guidance ⓘ Localizer Performance with Vertical guidance procedures ⓘ
enhances	GNSS positioning accuracy ⓘ Global Positioning System signals ⓘ
hasRegionalImplementation	BDSBAS NERFINISHED ⓘ European Geostationary Navigation Overlay Service NERFINISHED ⓘ GPS Aided GEO Augmented Navigation NERFINISHED ⓘ Korea Augmentation Satellite System NERFINISHED ⓘ MTSAT Satellite-based Augmentation System NERFINISHED ⓘ SPAS NERFINISHED ⓘ System for Differential Corrections and Monitoring ⓘ Wide Area Augmentation System NERFINISHED ⓘ
improves	Horizontal positioning accuracy ⓘ Vertical positioning accuracy ⓘ
operatesOver	Regional areas ⓘ Wide areas ⓘ
provides	Improved positioning accuracy ⓘ Improved positioning reliability ⓘ Integrity monitoring of GNSS signals ⓘ Real-time integrity alerts ⓘ Wide-area differential corrections ⓘ
requires	Certified avionics receivers ⓘ
supportsApplication	Aviation navigation ⓘ En-route navigation ⓘ Land transportation ⓘ Maritime navigation ⓘ Precision approach procedures ⓘ Safety-critical operations ⓘ Surveying and mapping ⓘ Terminal area navigation ⓘ
uses	Geostationary satellites ⓘ Ground reference stations ⓘ Master control stations ⓘ Uplink stations ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

WAAS → abbreviationFor → Satellite-Based Augmentation Systems ⓘ

this entity surface form: Wide Area Augmentation System

Differential GPS → relatedTo → Satellite-Based Augmentation Systems ⓘ