What's the key difference between NAVIC The Indian Regional Navigation Satellite System (IRNSS) and American GPS system?
- Radio Frequency
- Accuracy guaranteed
- Area Covered
- Engineering Parameters
Till now i find a article with following points:
- NAVIC Indian Regional Navigation Satellite System or IRNSS significantly more accurate than the American GPS system.
- Unlike American GPS, Isro is recommending a small additional hardware in handheld devices that can receive S-Band signals from IRNSS satellites and inclusion of a code in the phone software to receive L-Band signals.
- Both these L and S-band signals received from seven satellite constellation of the IRNSS are being calculated by a special embedded software which reduces the errors caused by atmospheric disturbances significantly. This, in turn, gives a superior quality location accuracy than the American GPS system
- It will consist of seven satellites working in tandem to provide highly accurate coverage over the Indian subcontinent, up to 1,500 km from Indian borders, a region making up the primary service area. Source
Some additional links are https://www.quora.com/What-is-NAVIC and https://www.quora.com/How-useful-is-Indias-GPS-NAVIC-as-compared-to-the-American-GPS