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)

C/a-code

Telecommunications; GPS (global positioning system)

The standard (Clear/Acquisition) GPS PRN code, also known as the Civilian Code or S-Code. Only modulated on the L1 carrier. Used by the GPS receiver to acquire and decode the L1 satellite signal, and ...

Carrier

Telecommunications; GPS (global positioning system)

A radio wave having at least one characteristic (e.g., frequency, amplitude, phase) that can be varied from a known reference value by modulation. In the case of GPS there are two transmitted carrier ...

Carrier frequency

Telecommunications; GPS (global positioning system)

The frequency of an unmodulated output of a radio transmitter. The GPS L1 carrier frequency is 1575.42 MHz.

Carrier phase

Telecommunications; GPS (global positioning system)

GPS measurements made on the L1 or L2 carrier signal. May refer to the fractional part of the L1 or L2 carrier wavelength (approximately 19cm for L1, 24cm for L2), expressed in units of meters, ...

Carrier-aided tracking

Telecommunications; GPS (global positioning system)

A signal processing strategy that uses the GPS carrier signal to achieve an exact lock-on the PRN code. More efficient and accurate than the standard approach.

Control point

Telecommunications; GPS (global positioning system)

Also called a Control Station or Geodetic Control Station. A monumented point to which coordinates have been assigned by the use of terrestrial or satellite surveying techniques. The coordinates may ...