Global Positioning Systems (GPS) are a network of satellites in orbit around the Earth that provide precise location and time information to users on the ground. GPS was originally developed by the United States Department of Defense for military purposes, but it has since become widely used in civilian applications such as navigation, surveying, and mapping. GPS works by using a constellation of at least 24 satellites that transmit signals to GPS receivers on the ground. These signals contain information about the satellite's location and the time the signal was transmitted. By receiving signals from multiple satellites, a GPS receiver can determine its own location with a high degree of accuracy. GPS has revolutionized navigation and mapping, making it possible to accurately determine one's location anywhere on the planet. GPS is used in a wide range of applications, from guiding aircraft and ships to helping hikers find their way in the wilderness. GPS is also used extensively in the automotive industry, where it is integrated into navigation systems to provide turn-by-turn directions to drivers. In addition, GPS is used in surveying and mapping, where it can provide highly accurate measurements of the Earth's surface. Despite its many benefits, GPS is not without its limitations. GPS signals can be disrupted by tall buildings, mountains, and other obstacles, which can make it difficult for GPS receivers to accurately determine their location. In addition, GPS signals can be jammed or spoofed, which can pose a security risk in some applications. Overall, GPS is a powerful tool that has transformed the way we navigate and map the world around us. Its widespread use in both military and civilian applications has made it an essential technology in the modern world.
satellites, navigation, mapping, accuracy, limitations
CITATION : "Charles Martinez. 'Global Positioning Systems.' Design+Encyclopedia. https://design-encyclopedia.com/?E=348007 (Accessed on July 04, 2025)"
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