Global Navigation Satellite System better known as GNSS is the latest development in Global Information system. A Global Navigation Satellite System (GNSS) is a technology through which a network of satellites is created to transmits high-frequency radio signals containing time and distance data that can be picked up by a receiver, allowing the user to pinpoint their precise location anywhere around the globe.
This new and exciting technology improves the productivity and accuracy in different industries.
Currently there are two Global Navigation Satellite Systems in operation; the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). These systems are constantly being upgraded to meet higher standards of reliability
GNSS uses different technologies and based on the technology used the precision of GNSS varies. GNSS is being developed in two phases. First phase is over establishing the required integrity for high-precision satellite navigation.
This second phase is already well underway. GALILEO, scheduled to begin service in 2008, is being developed to meet the standards of GNSS-2 for rapid and reliable certified precision positioning.