NavIC india’s own navigation system


Navic is the operational name of the Indian Regional Navigation Satellite System (IRNSS) developed by ISRO to focus especially on India and adjoining regions (1500 Kms around India). Unlike GPS which is a Global tracking constellation, and is a great achievement for the country.

Navic Demo at IMC 2019

NavIC’s Standard Positioning Service (SPS) will be available to civilians through integration with mobile chips.

This system also has another level of (RS) Restrictive Service that is encrypted and much more accurate ( in the range of 1 to 5 meters). These type of services meant for defense applications and use by armed forces.

NavIC positioning system consists of 8 Satellites named as – IRNSS-1A, IRNSS-1B, IRNSS-1C, IRNSS-1D, IRNSS-1E, IRNSS-1F, IRNSS-1G, IRNSS-1I.

Image source: ISRO

Actually, This navigation system was supposed to include 7 satellites and 2 backup satellites, but the Atomic clock of the first satellite, IRNSS 1A, stopped working and the launch of IRNSS 1H that was meant to replace the defective satellite failed. The IRNSS 1I launched later finally replaced IRNSS 1A and completed the constellation. 

In the future, ISRO will add more satellite to the system with home developed Atomic clocks to further improve NavIC.

This system is more accurate as compared to GPS. India’s Navic mostly has Geostationary satellites. These satellites are situated in much higher orbit (signal is less prone to obstructions). NavIC satellites use dual frequency bands (L5-band and S-band), which is why the system is relatively more accurate than GPS (that uses a single band and makes compensation for error due to signal deterioration by the atmosphere).

This technology is available in Snapdragon’s new chipset Snapdragon 720G and 460. To read about these processors.These chips will be first to integrate this technology link below.

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Snapdragon 720G (NavIC enabled mobile processors)

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