Multi-functional Satellite Augmentation System
Encyclopedia
Multi-functional Satellite Augmentation System (MSAS) is a Japan
ese SBAS (Satellite Based Augmentation System), i.e. a satellite navigation system which supports differential GPS
(DGPS) designed to supplement the GPS system by reporting (then improving) on the reliability and accuracy of those signals. Tests had been accomplished successfully, MSAS for aviation use was commissioned on September 27, 2007.
A similar service is provided in North America by Wide Area Augmentation System
(WAAS), and in Europe by European Geostationary Navigation Overlay Service
(EGNOS).
Through the use of these Augmentation Systems an individual GPS receiver is able 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. http://gps.faa.gov/Library/waas-f-text.htm.
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
ese SBAS (Satellite Based Augmentation System), i.e. a satellite navigation system which supports differential GPS
Differential GPS
Differential Global Positioning System is an enhancement to Global Positioning System that provides improved location accuracy, from the 15-meter nominal GPS accuracy to about 10 cm in case of the best implementations....
(DGPS) designed to supplement the GPS system by reporting (then improving) on the reliability and accuracy of those signals. Tests had been accomplished successfully, MSAS for aviation use was commissioned on September 27, 2007.
A similar service is provided in North America by Wide Area Augmentation System
Wide Area Augmentation System
The Wide Area Augmentation System is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System , with the goal of improving its accuracy, integrity, and availability...
(WAAS), and in Europe by European Geostationary Navigation Overlay Service
European Geostationary Navigation Overlay Service
The European Geostationary Navigation Overlay Service is a satellite based augmentation system developed by the European Space Agency, the European Commission and EUROCONTROL. It supplements the GPS, GLONASS and Galileo systems by reporting on the reliability and accuracy of the signals...
(EGNOS).
Through the use of these Augmentation Systems an individual GPS receiver is able 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. http://gps.faa.gov/Library/waas-f-text.htm.
| Satellite Name & Details | NMEA / PRN | Location |
|---|---|---|
| MTSAT-1R | NMEA #42 / PRN #129 | 140°E |
| MTSAT-2 | NMEA #50 / PRN #137 | 145°E |