Multi-functional Satellite Augmentation System (MTSAT or MSAS) is a Japanese
satellite based augmentation system
Augmentation of a global navigation satellite system (GNSS) is a method of improving the navigation system's attributes, such as precision, reliability, and availability, through the integration of external information into the calculation process. ...
(SBAS), i.e. a
satellite navigation system
A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioiso ...
which supports
differential GPS
Differential Global Positioning Systems (DGPSs) supplement and enhance the positional data available from global navigation satellite systems (GNSSs). A DGPS for GPS can increase accuracy by about a thousandfold, from approximately to .
DGPSs ...
(DGPS) to supplement the
GPS system by reporting (then improving) on the reliability and accuracy of those signals. MSAS is operated by Japan's
Ministry of Land, Infrastructure and Transport and
Civil Aviation Bureau (JCAB). Tests have been accomplished successfully, MSAS for aviation use was commissioned on 27 September 2007.
The use of SBASs, such as MSAS, enables an individual GPS receiver to correct its own position, offering a much greater accuracy. Typically GPS signal accuracy is improved from some 20 meters to approximately 1.5–2 meters in both the horizontal and vertical dimensions.
MSAS provides a similar service to
Wide Area Augmentation System
The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essentia ...
(WAAS) in North America,
European Geostationary Navigation Overlay Service
The European Geostationary Navigation Overlay Service (EGNOS) is a satellite-based augmentation system (SBAS) developed by the European Space Agency and EUROCONTROL on behalf of the European Commission. Currently, it supplements the GPS by re ...
(EGNOS) in Europe and
System for Differential Corrections and Monitoring (SDCM) in Russia.
See also
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Multi-Functional Transport Satellite (MTSAT)
*
Quasi-Zenith Satellite System
The Quasi-Zenith Satellite System (QZSS), also known as , is a four-satellite regional time transfer system and a satellite-based augmentation system developed by the Japanese government to enhance the United States-operated Global Position ...
(QZSS)
References
External links
Information on WAAS, EGNOS & MSAS
{{Satellite navigation systems
Navigation satellite constellations
Satellite-based augmentation systems