India’s own desi GPS is ready to strike the Market in early 2018
India’s own GPS NavIC made by ISRO (Indian Space Research Organization) will go live next year that will help you to find your bearings. From 2018 onwards if you ever lose your way in any part of India or anywhere in the Arabian sea then NavIC will assist you.
ISRO spent Rs. 1,420 crores on building and setting up seven IRNSS aka NavIC satellites in the orbit. NavIC (Navigation with Indian Constellation) is the name given by PM Modi. It’s meaning in Hindi is ‘sailor’ or ‘navigator’.
According to Tapan Misra, the director of Ahmedabad based SAC( Space Application Centre) “ IRNSS (The Indian Regional Navigation Satellite System) with a functional name of NavIC is recently being tested for its reliability and is most probably to be available in the market for public use early next year”.
Features of NavIC
- NavIC is more accurate as compared to US system.
- Designed to provide accurate position information to the users in India.
- Help in disaster management, terrestrial, aerial and marine navigation, integration of mobiles vehicle tracking and fleet management, visual and voice navigation for drivers.
- NavIC has seven satellites to cover India and its surroundings.
- Independent to find frequency error.
NavIC will provide SPS (Standard Positioning Service) with a position precision of 5 metre to all users. On the other hand, the GPS has a position precision of 20-30 metre.
Explaining the scientific reasons for NavIC's supremacy over GPS, Misra said, "Our system has dual frequency (S and L bands). GPS is dependent on L band only. Due to atmospheric disturbances its velocity changes as low frequency signal travels via atmosphere. US banks on atmospheric model to assess frequency error and it has to update this model from time to time to analyze the exact error. In India's case, we measure the difference in delay of dual frequency (S and L bands) and can evaluate the actual delay. Therefore NavIC is not dependent on any model to find the frequency error and is more accurate to GPS comparatively”.
(Source: The Times of India)
October 31, 2017 11:24 am