Global Positioning System (GPS) uses timing signals from four satellites to determine your latitude,longitude, altitude and precise time.
GPS receivers do not 'use' elevation for anything. They use the signals from several satellites simultaneously to calculate the latitude, longitude, and elevation of the receiver's location. It takes a minimum of three satellites to calculate the latitude and longitude, a minimum of four satellites to calculate the latitude, longitude, and elevation, if more satellites can be found the latitude, longitude, and elevation calculations can be refined more accurately.
GPS receivers do not 'use' elevation for anything. They use the signals from several satellites simultaneously to calculate the latitude, longitude, and elevation of the receiver's location. It takes a minimum of three satellites to calculate the latitude and longitude, a minimum of four satellites to calculate the latitude, longitude, and elevation, if more satellites can be found the latitude, longitude, and elevation calculations can be refined more accurately.
GPS receivers do not 'use' elevation for anything. They use the signals from several satellites simultaneously to calculate the latitude, longitude, and elevation of the receiver's location. It takes a minimum of three satellites to calculate the latitude and longitude, a minimum of four satellites to calculate the latitude, longitude, and elevation, if more satellites can be found the latitude, longitude, and elevation calculations can be refined more accurately.
The network of satellites operated and maintained by the USA is the Global Positioning System (GPS). There are other systems, comprised of other constellations of satellites, and operated and maintained by other countries.
Global Positioning Systems (GPS) reference geographic locations based on a coordinate system that includes latitude and longitude. This system allows for precise positioning anywhere on Earth by using signals from satellites. GPS provides both 2D and 3D location data, including altitude, making it invaluable for navigation and mapping applications.
Several technologies utilize latitude and longitude, including GPS (Global Positioning System) for navigation and location tracking in vehicles and smartphones. Geographic Information Systems (GIS) use these coordinates to map and analyze spatial data for urban planning, environmental monitoring, and disaster management. Additionally, location-based services in apps, such as weather forecasts and ride-sharing platforms, rely on latitude and longitude to provide relevant information based on a user's location.
Global positional systems (GPS) work by triangulating your position based upon finding your longitude and latitude. A device will find longitude and latitude and the GPS will read that and translate it into maps.
Everywhere. Latitude and longitude are systems of measurement on the physical Earth; using two coordinates, we can define any location on the surface of the Earth. They don't have any physical existence.
NAD83 (North American Datum of 1983) is a geodetic datum that provides a framework for mapping and spatial data, defining the Earth's surface in terms of latitude and longitude. In contrast, NAVD88 (North American Vertical Datum of 1988) is a vertical datum that establishes a standard for elevation measurements across North America, using a reference point based on mean sea level. While NAD83 focuses on horizontal positioning, NAVD88 is concerned with vertical positioning, making them complementary but distinct systems in geospatial applications.
It's all down to timing ! Ground stations 'decode' the amount of time it takes for a signal to 'bounce' from the satellite to the Earth. This pinpoints the location of each GPS satellite - and thus the necessary calculations produce the coordinates
Yes, an infinite number of them. Longitude and latitude only apply to points on the surface of the earth, or on the surface of the few other bodies in the solar system to which local coordinate systems have been assigned. The surface of any other body, or the space between solid bodies, are enormous regions without latitude or longitude.
-- Your height and weight are natural. The systems you use to describe your height and weight to people who can't see you are man-made. -- The latitude and longitude of a place on Earth are natural. The systems we use to describe the latitude and longitude of a place are man-made. 'Lines' are an irrelevant distraction in this discussion, just as the marks on the ruler and the bathroom scale are.