Presented By Tushar B Mali tushar mali 99gmail

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

GAGAN

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