• Wednesday, January 22, 2020

Scientists excited about India’s own GPS

Discussion in 'Indian Defence Forum' started by IndianTiger, May 20, 2012.

  1. IndianTiger

    IndianTiger FULL MEMBER

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    In the first step towards
    ending India’s dependence on
    the US-controlled Global
    Positioning System (GPS), the
    first of seven satellites that
    will form the Indian Regional Navigation Satellite System,
    or IRNSS, is expected to be
    launched by December 2012,
    Indian Space Research
    Organisation (ISRO) scientists
    have said. The IRNSS will be composed
    of seven geostationary
    satellites to watch over the
    country from 36,000 km
    above the earth’s surface—
    two satellites each would be positioned in the north and
    south, with three in the
    middle, according to Pradeep V
    Khekale, a senior scientist
    with ISRO’s Space
    Applications Centre (SAC) in Ahmedabad. Khekale is the
    programme manager for
    GAGAN, or GPS-aided Geo
    Augmented Navigation, a
    system that improves GPS
    accuracy for users in India, and is involved in developing
    the applications for IRNSS. Currently, only the United
    States and Russia have
    functional independent
    satellite-based navigation
    systems, although China has
    recently launched two satellites for its own system.
    “The first satellite launch is
    expected within a year, and
    all seven satellites for IRNSS
    are expected to be launched
    within three years,” said Chirag Dewan, a senior
    scientist at SAC. The payloads for the IRNSS
    would weigh approximately
    2,000 kilograms, and would
    need Geosynchronous Satellite
    Launch Vehicles, or GSLVs, to
    launch them. Khekale added that the two-frequency INRSS
    would be more accurate than
    the single frequency GPS. “IRNSS is generating a lot of
    interest, excitement and focus
    at the SAC now, especially
    after the successful launch of
    the RISAT-1 just a few weeks
    ago,” said Shailendra Singh, a Radio Frequency engineer at
    SAC who was part of the
    RISAT mission, the payload
    for which was developed
    here.
     
  2. karan21

    karan21 SENIOR MEMBER

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    we were supposed to have this in place by 2012 :hitwall:

    gslv why u no work???? :hitwall:
     
  3. Bl[i]tZ

    Bl[i]tZ FULL MEMBER

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    The problem is with GSLV, it has not matured as yet. GSLV is required to put a satellite in Geosynchronous orbit. ISRO's more matured rocket PSLV can't do this for you.

    If you don't have the rocket, you can't put the satellite.
     
  4. peaceful

    peaceful FULL MEMBER

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    one day indian, always liar.

    17 launched satellites suddenly become 2,
    Beidou navigation system - Wikipedia, the free encyclopedia

    Asia Pacific has already been covered by this 17 satellites
    you have to question why the regime in new delhi fear its cizitens to see the gap with China

     
  5. Veritas

    Veritas FULL MEMBER

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    Once an Indian ... you cannot be an Indian one day, you could have corrected the mistake of the data more graciously and who am I to say, or even to expect Grace and Chinese in one sentence.

    So much for the taunting which the Americans had in place since 2 decades, if you were pioneers of something, taunt away.. if you catching up to Americans... you are right catch up and then talk.
     
  6. peaceful

    peaceful FULL MEMBER

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    America's leadership in the area is unquestioned.

    the real problem here is indians couldn't face the reality and huge gap it has with China.
     
  7. XiNiX

    XiNiX BANNED

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    Mr. (Un)Peaceful ... who brought china and "loser indians" in first place ?
    Why are u so eager to Bring China from Nowhere .... n Troll ??

    Says Who ? You ? ....lol... This is Called Mental Masturbation. Keep it Up.

    Trolling at its best. Post Reported.
     
  8. Alfa-Fighter

    Alfa-Fighter SENIOR MEMBER

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    I think you chinese don't know proper english, then don't show it to the world ...... and become the laughing stock in front of the world.

    China has recently launched two satellites for its own system.

    In english it want to say that " that china launched recently 2 sats for the system recently, ( which mean, talking about launching of sats on 04/29/2012 and not talking about other previous launches. got it ?)

    Its better before you open your mouth an show the world how IQ and english you got , better first lean and interpreate what is written and what is saying...........

    Man you Chinese are bolted for high IQ and don't know proper english...
     
  9. shuttler

    shuttler ELITE MEMBER

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    another shameless and lying indian. there are 4 satellite navigation systems that are known to the world:

    Bdidou - (COMPASS) China has already in operation officially since 27 Dec, 2011:

    Beidou/Compass Declared Operational, Test ICD Released | GPS World

    Beidou will start covering service in Asia Pacific by the end of this year and the world in 2020!

    GPS - USA - status: operational

    GLONASS - Russia - status: operational

    Galileo- European Union - status: in development

    india - status:?
     
  10. XiNiX

    XiNiX BANNED

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    Now You are lying here. Check WIKI. (http://en.wikipedia.org/wiki/GPS ) There are 6 NAV systems..Including an INDIAN one which you deliberately Ommited,

    Just Open Your Dictionary and check the meaning of the word : "Functional" .
    Your System is NOT Global... as in case of GLONASS and GPS. Which have a Functional Global Coverage .
    SO what IndianTiger Meant was. None Systems other than GPS and Glonass have Global Coverage.

    Got It ?
     
  11. itaskol

    itaskol FULL MEMBER

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    build own Positioning system is necessary for every big powers.
    the cost is huge to build a Global Positioning System which need around 30 satellites.
    but many countries can afford a own Regional Navigation Satellite System.
     
  12. Raje amar

    Raje amar FULL MEMBER

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    We need coverage at leats 5k km from our borders. what is the range of Indian GPS? i mean how far it can look out side India?
     
  13. oct605032048

    oct605032048 SENIOR MEMBER

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    China's system had been functioning for years. Beidou helped a lot after the rescue of Sichuan earthquack in 2008.
    [​IMG]


    Now you can buy a Beidou terminal like this at Alibaba for about $30.
    [​IMG]

    The Beidou navigation system has been widely used in fishing industry. Here is a picture of the track of a fishing boat on a Beidou terminal. The white line is the sea boarder between China and NKorea.

    [​IMG]
     
  14. oct605032048

    oct605032048 SENIOR MEMBER

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    You can send text message globally using a Beidou terminal device.

    [​IMG]

    Or it can be made really small to put in on your finger.
    [​IMG]
     
  15. peaceful

    peaceful FULL MEMBER

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    its so funny that indians here are complaining about the quality of Chinese products given their entire civilization is build upon Chinese products:

    indians are using Chinese designed/made power generators to power its nation
    indians are posting here because Chinese designed and built their backbone internet routers.
    indians can now talk to their friends on mobile because 50% of mobile phones in india are designed/made by Chinese - including those base stations.

    one day indian, always liar