Truly, any navigation satellite tv for pc system is named GNSS i.e. World Navigation Satellite tv for pc System in technical language. It’s a community of many satellites that repeatedly ship indicators to Earth. The receivers current in our cellphone or automotive catch these indicators and inform our precise location. A sign of no less than 4 satellites is important for this work.
The world’s oldest and hottest system is GPS developed by the US. It has greater than 24 satellites that roam at an altitude of about 20,200 kilometers from the earth. A lot of the navigation utilized in smartphones and autos relies on this.
Russia’s Glonass system can be fairly previous and has been working for the reason that Nineteen Eighties. It additionally has 24 satellites and in some areas it proves higher than GPS.
China’s Beidou system beforehand used to work solely on the regional degree however now it covers the entire world and has greater than 35 satellites.
The Galileo System of the European Union is particularly identified for its high-ecuracy. It has greater than 28 satellites and is specifically designed for civil use.
India can be not behind on this race. ISRO has ready its personal navigation system underneath the title Navic. It consists of seven satellites and it offers extremely correct location knowledge in India and its surrounding areas. It was launched in 2013 and is essential for India by way of safety.
Japan has a Qzss system designed for the Asia-Pacific area. It really works intently with GPS and is particularly helpful in areas the place GPS sign weakens.
That’s, it’s clear that the entire world doesn’t run solely on the GPS of America, however a complete of six international locations and teams have created their navigation system on the energy of their know-how. This isn’t solely necessary for his or her security however can be crucial for technical freedom and strategic edge.
Printed at: 24 Sep 2025 03:42 PM (IST)