Introduction to GPS

What is GPS all about ?Do you know that during US invasion in Iraq, US government move the GPS satellite by certain degrees to misguide enemy missile. Yes, that is how important GPS can be. Maybe in Malaysia, it is not widely used. but in other developed country you can see people use it in jungle tracking and in car during travel. During my visit to Korea, my friend there use GPS equipment to track Police Speed Pistol, how cool is that?

The Global Positioning System (GPS) is a space-based radio-navigation system consisting of a constellation of satellites and a network of ground stations used for monitoring and control. A minimum of 24 GPS satellites orbit the Earth at an altitude of approximately 11,000 miles providing users with accurate information on position, velocity, and time anywhere in the world and in all weather conditions.

GPS is operated and maintained by the Department of Defense (DoD). The Interagency GPS Executive Board (IGEB) manages GPS, while the U.S. Coast Guard acts as the civil interface to the public for GPS matters. The Federal Aviation Administration is investigating and applying the use of GPS as it pertains to aviation.

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