- 行业: Telecommunications
- Number of terms: 1485
- Number of blossaries: 0
- Company Profile:
Garmin designs, develops, manufactures and markets a diverse family of hand-held, portable and fixed-mount GPS-enabled products and other navigation, communications and information products for the general aviation and consumer markets.
The precise code of the GPS signal typically used only by the U.S. military. It is encrypted and reset every seven days to prevent use from unauthorised persons.
Industry:Telecommunications
A single display element on an LCD screen. The more pixels, the higher the resolution and definition.
Industry:Telecommunications
The way in which the GPS receiver's position will be displayed on the screen. Commonly displayed as latitude/longitude in degrees and minutes, with options for degrees, minutes and seconds, degrees only, or one of several grid formats.
Industry:Telecommunications
The zero meridian, used as a reference line from which longitude east and west is measured. It passes through Greenwich, England.
Industry:Telecommunications
The identifying signature signal transmitted by each GPS satellite and mirrored by the GPS receiver in order to separate and retrieve the signal from background noise.
Industry:Telecommunications
The measured distance between the GPS receiver and the GPS satellite using uncorrected time comparisons from satellite-transmitted code and the local receiver's reference code.
Industry:Telecommunications
A type of GPS antenna in which four spiralling elements form the receiving surface of the antenna. For GPS use, quadrifilar antennas are typically half-wavelength or quarter-wavelength size and encased in a plastic cylinder for durability.
Industry:Telecommunications
A group of waypoints entered into the GPS receiver in the sequence you desire to navigate them.
Industry:Telecommunications
A message shown when a GPS receiver is gathering satellite almanack data. This data tells the GPS receiver where to look for each GPS satellite.
Industry:Telecommunications
The sequential transmission of the signal elements of a group representing a character or other entity of data. The characters are transmitted in a sequence over a single line, rather than simultaneously over two or more lines, as in parallel transmission. The sequential elements may be transmitted with or without interruption.
Industry:Telecommunications
