Global Positioning System - Wikipedia
The Global Positioning System (GPS), originally Navstar GPS, [2] is a satellite-based radio navigation system owned by the United States Space Force and operated by Mission Delta 31. [3] It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where ...
全球定位系统 - 维基百科，自由的百科全书
全球定位系统 （英語： Global Positioning System，通常简称 GPS），又稱 全球衛星定位系統，是 美国国防部 研制， 美國太空軍 运营与维护的 中地球轨道 卫星导航系统。. 它可以为 地球 表面绝大部分地区（98%）提供准确的定位、测速和高精度的标准時間。. 全球 ...
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 segments: the space segment, the control segment, and the user segment.
GPS: The Global Positioning System
5 天之前 · Official U.S. government information about the Global Positioning System (GPS) and related topics.
GPS - NASA
2023年9月25日 · What is GPS? 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). It can pinpoint a three dimensional position to meter-level accuracy and time to the 10-nanosecond level, worldwide and 24/7.
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 navigation system of at least 31 satellites, 24 (or more) of which are usually in flight and operational. These satellites fly within Earth's orbit at an altitude of 12,550 miles.
GPS: What is it and how does it work? | Space
2022年12月6日 · GPS stands for Global Positioning System. We use this technology every day but how does it work and why was it invented? Here we explore this vital technology.
How Does GPS Work? | NASA Space Place – NASA Science for Kids
2024年11月8日 · Today, all we need is a simple hand-held GPS (short for Global Positioning System) receiver to figure out exactly where we are anywhere in the world. But we still need objects high in the sky to figure out where we are and how we get to other places.
GPS | Definition, Types, Uses, & Facts | Britannica
Ambulance fleets, family automobiles, and railroad locomotives benefit from GPS positioning, which also serves farm tractors, ocean liners, hikers, and even golfers. Many GPS receivers are no larger than a pocket calculator and are powered by disposable batteries, while GPS computer chips the size of a baby’s fingernail have been installed in ...
What Is GPS & How do Global Positioning Systems Work? - Geotab
2024年10月17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 travel.