Custom Search
 


Indian Minister for Civil Aviation, Ashok Gajapathi Raju Pusapati lighting the lamp at the launch of the GAGAN System for aviation use, in New Delhi, July 13, 2015
 
 
Indian SatNav system GAGAN is fully operational

New Delhi, July 14 2015: The Indian Minister of Civil Aviation, P. Ashok Gajapathi Raju,  formally launched the GAGAN system (GPS AIDED GEO AUGMENTED NAVIGATION) at a function here yesterday.   
GAGAN is the first SBAS (Satellite Based Augmentation System) in the world certified for Approach with Vertical Guidance operating in the Equatorial Ionospheric region and the third SBAS to have achieved this feat, after WAAS of USA and EGNOS of Europe. GAGAN was already certified for en route operation since 30th December 2013. 
GAGAN is a joint effort of Airport Authority of India (AAI) and Indian Space Research Organization (ISRO). In the aviation field, GAGAN will support more direct air routes, reduce fuel consumption and improve safety. In addition, GAGAN provides benefits to agriculture, all modes of transportation and public services such a defence services, security agencies and disaster recovery management by aiding in search and rescue to locate the disaster zone accurately. 
Since February  14 2014, GAGAN has been continuously providing navigation signals from GSAT-8 and GSAT-10 satellites launched by ISRO, augmenting the performance of GPS signals received over Indian Airspace. 
_____________________________________________________________________________________________________________________________
How GAGAN works
The Global Navigation Satellite System (GNSS) data is received and processed at widely dispersed INRES which are strategically located to provide coverage over the required service volume.  Data is forwarded to the INMCC, which process the data from multiple INRES to determine the differential corrections and residual errors for each monitored satellite and for each predetermined ionospheric grid point (IGP). Information from the INMCC is sent to the INLUS and uplinked along with the GEO navigation message to the GAGAN GEO satellite.  The GAGAN GEO satellite downlinks this data to the users via two L-band ranging signal frequencies (L1 and L5), with GPS type modulation, to improve the accuracy and availability and provide integrity.
Seamless Coverage: GAGAN will provide augmentation service for GPS over India, Bay of Bengal, South-East Asia, Middle East expanding upto Africa.  GAGAN will be compatible and interoperable with other SBAS systems such as the Wide Area Augmentation System (WAAS) of USA, the European Geostationary Navigation Overlay Service (EGNOS) of European Union (EU) and the Multi-functional Satellite Augmentation System (MSAS) of Japan. It will fill the gap between the European EGNOS and the Japanese MSAS to provide seamless air navigation service across regional boundaries.




    


Post Your Comments Now
       
  Name  
  Email  
  Comment  
     
     
       
       
     
Indian SatNav system GAGAN is fully operational
by Amey on October  22,  2015
  "detta :Cher Chris, din kommentar fe5r mig att df6 av skatrt. Inte paddlar moquerie, vara se4kra, men eftersom du markerar ne5got som varken jag, eller valfri webble4sare pe5 min kunskap ne4mnde aldrig.Jag ve4grar kategoriskt att installera en se4ndare wifi pe5 min be5t. Jag e4r en av de skakade burken som vi lever omgivna av elektromagnetiska ve5gor ockse5.Trots innehe5llet i denna blogg de4r jag urse4kt ff6r WiFi f6verff6ringar till stf6rst nytta ff6r anve4ndarna av iPhone och iPad, Jag medger f6dmjukt att din kommentar e4r full av sunt ff6rnuft. Vem kritiserar inte, i ve5r gemensamma kontinentala, spridning av kommunikation antenner av alla slag, och den skada de kan orsaka ff6r ve5r he4lsa och ve5ra barn ? Alas, e4ven de mest he4mndlystna kritiker e4r samma personer som ff6rtala operatf6rer ne4r deras mobiltelefon e4r att misslyckas, Offline.Den, Det skulle fortfarande finnas ett fritt utrymme av ne5gon ond ve5g : La Mer ? Eh bien, oui. Helt enkelt navigera som jag har gjort i decennier, med bara ne5gra instrument och tre5dbundna GPS. I be4sta, med vissa medel, le4sare diagram. Tyve4rr, pe5 iPad, Apple Ve4gra alla Syste8me kroppsbyggnad (eller ne4stan, det finns undantag) gf6r det mf6jligt att ansluta instrumentering. Det me5ste medges att anve4ndningen av iPad eller iPhone be5tliv inte passar in i deras prioriterade me5l. Vi e4r de4rff6r tvungna, en och endast om Vi vill visa pe5 en iPad uppgifter fre5n ve5ra instrument, betyder anve4ndning av Wi-Fi-.Men jag vill ff6rse4kra er, un IPAD (med integrerad GPS) med programvara kvalitet och le4mplig kartle4ggning kan leda till slutet av ve4rlden utan ett instrument ombord e4r anslutet. Me4tarna och repeaters e4r tillre4ckliga i sig sje4lva, som behf6ver samverka med en iPad ? Och AIS, du se4ger. Det finns ske4rmar som som perfekt uppfyller detta kontor.Du kan ff6rvisa din WiFi styrelse, och navigera se4kert."