Presented By. Tushar B. Mali tushar. mali 99@gmail. com Sinhgad College Of Engg, Solapur
OVERVIEW ØIntroduction ØHistory of satellite systems ØSBAS ØVarious GPS Augmentation systems ØGAGAN -its overview and objectives ØTDS configuration ØFOP configuration ØReferences
Global Positioning System (GPS) from the USA Old Navigation Satellite Systems Global Navigation Satellite System (GLONASS) from the Russian Federation GALILEO satellite navigation system from Europe
Ionosphere Ephemeris data Multipath Error Drift clock Factors affecting. Troposphere GPS signal Receiver
Satellite Based Augmentation System Integrity Availability SBAS Continuity Accuracy
General SBAS system
GPS Augmentation systems
Features of GAGAN ØGAGAN is a Satellite Based Augmentation System being implemented by India based on GPS ØAccuracy- 1. 5 -metre in the horizontal, 2. 5 -metre in the vertical ØMax operational life- 15 years ØProject cost- 7. 74 billion (US$140. 87 million)
OBJECTIVE To provide Satellite-based Navigation services with accuracy and integrity required for civilian and aviation applications over Indian Air Space.
Elements of TDS phase: ü 8 INRES: ü 1 INMCC ü 1 INLUS üCommunication link between INRES, INLUS & INMCC üIonosphere error corrections
INMCC GAGAN INMCC station at Bangalore
INLUS 11 -metre Dish Antenna, Bangalore
GAGAN Coverage over worldwide
Advantages of GAGAN will increase safety by using a three dimensional approach operation with course guidance to the runway, which reduce the risk of controlled flight into terrain. GAGAN will also offer high position accuracies over a wide geographical area like the Indian Airspace.
v K N Suryanarayana Rao, GAGAN - The Indian satellite based augmentation system, Indian Journal of Radio & Space Physics Vol. 36, August 2007, pp. 293 -302 vwww. howstuffworks. com/gps v En. wikipedia. org