- 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.
Represents the direction of the north magnetic pole from the observer's position. The direction a compass points.
Industry:Telecommunications
In navigation, at a given place and time, the horizontal angle (or difference) between true north and magnetic north. Magnetic variation is measured east or west of true north.
Industry:Telecommunications
A graphic representation of a geographic area and its features.
Industry:Telecommunications
The average level of the ocean's surface, as measured by the level halfway between mean high and low tide. Used as a standard in determining land elevation or sea depths.
Industry:Telecommunications
A GPS receiver that switches at a very rapid rate between satellites being tracked. Typically, multiplexing receivers require more time for satellite acquisition and are not as accurate as parallel channel receivers. Multiplexing receivers are also more prone to lose a satellite fix in dense woods than parallel channel GPS receivers.
Industry:Telecommunications
A unit of length used in sea and air navigation, based on the length of one minute of arc of a great circle, especially an international and U.S. unit equal to 1,852 metres (about 6,076 feet).
Industry:Telecommunications
The act of determining the course or heading of movement. This movement could be for a plane, ship, automobile, person on foot, or any other similar means.
Industry:Telecommunications
The message transmitted by each GPS satellite containing system time, clock correction parameters, ionospheric delay model parameters, and the satellite’s ephemeris data and health. The information is used to process GPS signals to give the user time, position, and velocity. Also known as the data message.
Industry:Telecommunications
Fixes the GPS receiver’s map display so north is always fixed at the top of the screen.
Industry:Telecommunications
A continuous tracking receiver using multiple receiver circuits to track more than one satellite simultaneously.
Industry:Telecommunications
