NAGU
See Notice Advisory to GLONASS Users NANU
See Notice Advisory to NAVSTAR Users National Differential Global Positioning System
A network of ground and beacon based differential stations that increases GPS accuracy. National Geodetic Survey (NGS)
An agency of the United States NOAA that defines and manages a national coordinate system. This network, the NSRS)">National Spatial Reference System (NSRS), provides the foundation for transportation and communication; mapping and charting; and a multitude of scientific and engineering applications. National Marine Electronics Association (NMEA)
A U.S. standards committee that defines data message structure, contents, and protocols to allow the GPS receiver to communicate with other pieces of electronic equipment aboard ships. National Spatial Data Infrastructure (NSDI)
The set of base geographic data necessary for effective operation of the United States federal government and its suppliers, made accessible as a distributed database. National Spatial Reference System (NSRS)
A system administered by the NGS that provides the foundation for transportation and communication; mapping and charting; and a multitude of scientific and engineering applications. Native Application
An application that comes already installed in a new handheld computer. Nautical Mile
The unit of distance used in most maritime navigation. It is 1.15 times longer than a statute mile, and equals 1852metres, or 6076 feet. Navigation
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. Navigation Message
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. NAVSTAR
The official U.S. Government name given to the GPS satellite system. NAVSTAR is an acronym for NAVigation Satellite Timing and Ranging. Network
Any time you connect two or more computers together so that they can share resources, you have a computer network. NGS
See National Geodetic Survey NMEA
See National Marine Electronics Association NMEA 0183
The committee of the National Marine Electronics Association that developed a standard for interfacing marine electronic devices. The standard is widely used for interfacing GPS receivers. Noise
An interfering signal that tends to mask the desired signal at the receiver output and which can be caused by space and atmospheric phenomena, can be human made, or can be caused by receiver circuitry. North Up Orientation
Fixes the GPS receiver’s map display so north is always fixed at the top of the screen Notice Advisory to GLONASS Users (NAGU)
A periodic bulletin alerting GLONASS users to changes in system performance. Notice Advisory to NAVSTAR Users (NANU)
A periodic bulletin alerting GPS users to changes in system performance NSDI
See National Spatial Data Infrastructure NSRS
See National Spatial Reference System Nokia
Nokia Corporation is one of the world's largest telecommunications equipment manufacturers. Headquartered in Keilaniemi of Espoo, Finland, this Finnish telecommunications company is best known today for its leading range of mobile phones. Nokia also produces mobile phone infrastructure and other telecommunications equipment for applications such as traditional voice telephony, ISDN, broadband access, professional mobile radio, voice over IP, wireless LAN and a line of satellite receivers.NAGU
|
