How It Works ยท Technology
Global Positioning System
Satellites providing location signals
GPS trilaterates position using time-of-flight signals from multiple satellites.
- atomic clocks
- trilateration
- ephemeris
- receiver
- time-offset
Inputs
Precise time and orbital data broadcast by satellites.
Process
Receiver measures signal delays from at least four satellites to solve position and clock bias.
Outputs
Latitude, longitude, altitude, and time for navigation and timing.