What are the differences between GPS and GNSS?

Aug 18 - 2022

gps gnss module

GPS positioning satellites, a system for positioning and navigation in real time around the world, is called Global Positioning System, or GPS for short. GPS is an all-round, all-weather, all-time, high-precision satellite navigation system developed gps gnss moduleand established by the U.S. Department of Defense, which can provide low-cost, high-precision three-dimensional position, speed and precise timing and other navigation information for users worldwide. It is a model of satellite communication technology in the field of navigation, which has greatly improved the level of informationization of the global society and strongly promoted the development of digital economy.

The full name of GNSS is Global Navigation Satellite System (GNSS is Global Navigation Satellite System) global satellite navigation system, which is the same name for BeiDou system, GPS, GLONASS, Galileo system and other such individual GNSS (Global Navigation Satellite System) is the same term for BeiDou, GPS, GLONASS, Galileo and other single satellite navigation and positioning systems, and can also refer to their enhanced systems, and also refers to the sum of all these satellite navigation and positioning systems and their enhanced systems hybrid, that is, it is a large system composed of multiple satellite navigation and positioning and their enhanced systems. It provides all-weather, high-precision position, velocity and time information for all types of military and civilian vehicles on land, sea, air and space, as it is also known as space-based positioning, navigation and timing system.

The international GNSS system is a multi-system, multi-GPS positioning system works by the ground master control station to collect the observation data and meteorological information of each monitoring station, calculate the ephemeris of each satellite and satellite clock correction number, edit the navigation message according to the prescribed format, and inject these information into the GPS satellite through the injection station on the ground, and when measuring and positioning, the user can use the stored ephemeris of the receiver to get the rough position of each satellite. The user can use the receiver's stored ephemeris to get the rough position of each satellite. Based on these data and its own position, the computer selects the four satellites with the larger angle between the satellite and the user's link as the observation object.