Irnss ppt.
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The document discusses India's regional satellite navigation system called IRNSS. It provides a brief history of satellites, including India's first communication satellite Aryabhatta launched in 1975. It describes the range coverage of IRNSS as 1500-2000 km from the border with an orbital height of 36,000 km. The document outlines the components and configuration of IRNSS and explains how satellites stay in orbit through balance of velocity and gravitational pull. It concludes that satellites remain the best utilization for communication and other sectors due to their speed and advantages.
Irnss ppt.
- 1. INDIAN SATELLITE SYSTEM- IRNSS SUBMITTED BY- RAKESH KUMAR SINGH 1405420073 EE-32 SUBMITTED TO- MRS. MRINALINI SRIVASTAV
- 2. History of Satellites : First satellite that was used for communication purpose in INDIA was -ARYABHATTA (19 April 1975) The first geostationary communication satellite -SYNCOM 3(19 Aug 1963). Father of geostationary communication satellite is -HAROLD ROSEN (Aircraft engineer) The world's first artificial satellite is the Sputnik 1 was launched in 1957
- 8. RANGE COVERAGE •Range coverage- 1500-2000 km from border •Orbital hight- 36000km
- 10. COUNTRIES WHOHAVE THEIROWN GPS
- 12. How Satellites Work : I. A Earth Station sends message in GHz range (Uplink). II. Satellite Receive and retransmit signals back. (Downlink) III. Difference between Downlink and Uplink frequency is 2 GHz.
- 13. TYPES OF ORBITS Low-Earth-Orbit (LEOs) Medium-Earth-Orbit (MEOs) Geostationary (GEOs)
- 14. Low-Earth-Orbit (LEO) Altitude (600-1000 KM) satellite gives it a better signal strength Advantages: Reduces transmission delay Disadvantages: Smaller coverage area. Shorter life span (5-8 yrs.)
- 15. Middle-Earth-Orbiting (MEO) MEOs orbits between the altitudes of 8,000 - 20,000 km above the earth. MEO satellites have a larger coverage. These orbits are primarily reserved for communications satellites that cover the North and South Pole. MEOs are placed in an elliptical (oval-shaped) orbit.
- 16. Geosynchronous-Earth-Orbit (GEO) From the ground level the satellite appears fixed. GEO satellites have a 24 hour view of a particular area. Coverage to 40% of area Of planet by this satellite
- 17. How do satellites stay in orbit? Satellites stay in orbit due to the balance of two factors: i. Velocity and ii. Gravitational pull between the Earth and the satellite. Satellites never fall into the Earth this because Earth is round and curves.
- 18. Applications of IRNSS: - Terrestrial, Aerial and Marine Navigation. - Disaster Management - Vehicle tracking and fleet management.
- 19. Integration with mobile phones. Precise Timing -Mapping and Geodetic data capture -Visual and voice navigation for drivers
- 20. CONCLUCION Satellites remain the best utilization used for COMMUNICATION AND OTHER SECTOR due to their speed and other advantages mentioned in this presentation.
- 21. THANK YOU