GPS (Global Positioning System)
In the context of aviation, the Global Positioning System (GPS) is a satellite-based navigation system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth. It is a crucial tool in aviation, used for navigation and for precise time synchronization. GPS allows pilots to get an accurate reading of their exact location in the sky, including altitude, speed, and direction. It is also used in flight planning, allowing pilots to chart the most efficient course to their destination. Furthermore, GPS is used in the Automatic Dependent Surveillance-Broadcast (ADS-B) system, which is a surveillance technology in which an aircraft determines its position via satellite navigation and periodically broadcasts it, enabling it to be tracked. The information can be received by air traffic control ground stations as a replacement for secondary radar. It can also be received by other aircraft to provide situational awareness and information for collision avoidance.
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