GPS | Definition, Types, Uses, & Facts | Britannica
GPS, space-based radio-navigation system that broadcasts highly accurate navigation pulses to users on or near Earth. In the United States’ Navstar GPS, 24 main satellites in 6 orbits circle …
What Is GPS and How Does It Work? - Lifewire
2020年6月21日 · The Global Positioning System (GPS) is a navigation system owned by the United States government that's made up of three main segments: The Space Segment is a …
GPS - Education | National Geographic Society
2024年9月27日 · A global positioning system (GPS) is a network of satellites and receiving devices used to determine the location of something on Earth. Some GPS receivers are so …
How Does GPS Work? | NASA Space Place – NASA Science for Kids
2025年3月17日 · GPS is a system of 30+ navigation satellites circling Earth. We know where they are because they constantly send out signals. A GPS receiver in your phone listens for these …
What is a GPS? How does it work? | Library of Congress
GPS: The Global Positioning System - U.S. Government information about the Global Positioning System (GPS) and related topics" - includes an overview of GPS, information on applications …
How GPS Actually Works - How-To Geek
2016年9月23日 · A device with GPS isn’t actually “contacting” satellites to determine its location. Instead, it’s just listening for the radio signals that are being broadcast from these satellites all …
Global Positioning System - Wikipedia
The Global Positioning System (GPS) is a satellite-based hyperbolic navigation system owned by the United States Space Force and operated by Mission Delta 31.
GPS - NASA
2023年9月25日 · The Global Positioning System (GPS) is a space-based radio-navigation system, owned by the U.S. Government and operated by the United States Air Force (USAF). …
GPS.gov: GPS Overview - GPS: The Global Positioning System
2021年2月22日 · The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. This system consists of three …
What Is GPS & How do Global Positioning Systems Work? - Geotab
2020年5月22日 · The Global Positioning System (GPS) is a navigation system using satellites, a receiver and algorithms to synchronize location, velocity and time data for air, sea and land …