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GPS (global positioning system)

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

Contributors in GPS (global positioning system)

GPS (global positioning system)

2D operating mode

Telecommunications; GPS (global positioning system)

A two-dimensional GPS position fix that includes only horizontal coordinates (no GPS elevation). It requires a minimum of three visible satellites.

3D operating mode

Telecommunications; GPS (global positioning system)

A three-dimensional GPS position fix that includes horizontal coordinates, plus elevation. It requires a minimum of four visible satellites.

Binary shift-key (BSK) modulation

Telecommunications; GPS (global positioning system)

BSK is a modulation technique by which a binary message, such the Navigation Message or the PRN codes (consisting of 0's and 1's), is imprinted on the carrier wave. Unlike Amplitude Modulation (AM) ...

Circular error probable (CEP)

Telecommunications; GPS (global positioning system)

A statistical measure of the horizontal precision. The CEP value is defined as a circle's radius, when centred at the true position, encloses 50% of the data points in a horizontal scatter plot. ...

Coarse acquisition (C/A)

Telecommunications; GPS (global positioning system)

A spread spectrum direct sequence code that is used primarily by commercial GPS receivers to determine the pseudo-range to a transmitting GPS satellite, modulated on the L1 carrier.

Coarse/acquisition code (C/A code)

Telecommunications; GPS (global positioning system)

The standard positioning signal the GPS satellite transmits to the civilian user. It contains the information the GPS receiver uses to fix its position and time, and is accurate to 100 metres or ...

Code division multiple access (CDMA)

Telecommunications; GPS (global positioning system)

A method whereby many radios use the same frequency, but each one has a unique code. GPS uses CDMA techniques with codes for their unique cross-correlation properties.

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