Which technology is commonly used for geo-positioning?

GPS, or Global Positioning System, is widely recognized as the primary technology for geo-positioning. It operates by utilizing a network of satellites in Earth's orbit that transmit signals to GPS receivers on the ground. These receivers can determine their exact location by analyzing the time it takes for signals from multiple satellites to reach them. This provides very precise positioning capabilities, often to within a few meters or less, which is essential for various applications such as navigation, mapping, and surveying.

While Wi-Fi and Bluetooth can provide location services, they primarily function in confined spaces and are dependent on a network of access points or devices to determine position rather than a global system. Cellular networks can also be used for location tracking, but they rely on triangulating signals from cell towers, which can be less accurate than GPS in outdoor environments. Thus, GPS remains the most effective and widely used technology for geo-positioning due to its reliability and global coverage.