GPS (global positioning system)

GPS (global positioning system)

Of or referring to a space based navigation system that provides location, time, and weather conditions on earth.

Industry: Telecommunications

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GPS (global positioning system)

downlink

Telecommunications; GPS (global positioning system)

A transmission path for the communication of signals and data from a communications satellite or other space vehicle to the earth.

dual-frequency

Telecommunications; GPS (global positioning system)

Refers to the instrumentation that can make measurements on both L-Band frequencies, or to the measurements themselves (e.g., L1 and L2 pseudo-range or carrier phase measurements). Dual-frequency ...

elevation

Telecommunications; GPS (global positioning system)

The distance above or below mean sea level.

ellipsoid

Telecommunications; GPS (global positioning system)

A geometric surface, all of whose plane sections are either ellipses or circles.

ephemeris data

Telecommunications; GPS (global positioning system)

Current satellite position and timing information transmitted as part of the satellite data message. A set of ephemeris data is valid for several hours.

ephemeris errors

Telecommunications; GPS (global positioning system)

Errors (or "biases") which are present in the (Broadcast or Precise) Ephemeris data. Broadcast Ephemeris errors are typically at the few metre level, while Precise Ephemeris errors are at the ...