Global Positioning System

:GPS redirects here. For other uses of the acronym GPS, see GPS (disambiguation).

External links

Documentation

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• Peter H. Dana: Global Positioning System Overview - Large amount of technical information and discussion.
• GPS SPS Signal Specification, 2nd Edition - The official (civilian) signal specification.
• History of GPS, including information about each satellite's configuration and launch.
• U.S. Army Corps of Engineers manual: NAVSTAR HTML and PDF (22.6 MB, 328 pages)
• http://gpsinformation.net/airgps/gpsrfi.htm - Discusses the safety of personal use of a GPS on commercial aircraft.

Government Agencies

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• USCG Navigation Center: Status of the GPS constellation, government policy, and links to other references. Also includes satellite almanac data.
• Schriever Airforce Base Webserver: Even more up-to-date almanac data and NANUs
• Interagency GPS Executive Board - Established in 1996 to manage GPS across the various stakeholder agencies.
• The GPS Joint Program Office (GPS JPO) - Still exists and distinct from IGEB.
• The FAA has more information on GPS, WAAS, LAAS, and DGPS at http://gps.faa.gov/FAQ/index.htm
• GPS Weapon Guidance Techniques

Software

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• Opanda IExif - a handy tool for viewing detailed GPS data in digital image in Windows Local folder & Internet Explorer & Mozilla Firefox & ACDSee.
• Opanda PowerExif Editor - a powerful editer for adding GPS data into Exif tags of digital images or modifying the GPS data in digital images freely and easily.
• Gpsdrive - GNU Map-based navigation system. It displays your position on a zoomable map provided from a NMEA-capable GPS receiver.
• GPS Visualizer - A free online utility that creates SVG and JPEG maps and profiles from GPS waypoints and tracks.
• Magnificient Logs - Create interactive GPS logs online, find photo location by linking GPS and Exif timestamp.
• A free Open Source GPS Toolkit: GPSTk
• Dale Priest's guide to navigation with GPS and Palm PDAs
• GPSd, a GPS daemon program
• GPS3d, a 3D gps visualization tool

GPS software for car navigation

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• TomTom
• ViaMichelin Navigation
• CoPilot
• PocketGPS Pro Moscow

Hardware

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• u-blox GPS products (chipsets, modules, receiver boards, antennas and accessories)
• Motorola GPS products (single chip receivers, positioning devices, timing modules, antennas)
• GPS Buying Guide - A guide to selecting the right consumer GPS receiver based on intended use.

Usenet Newsgroups

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• sci.geo.satellite-nav or via the Google Groups web site.
• uk.rec.gps or via the Google Groups web site.

Other Information

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• Hacking GPS
• u-blox GPS Tutorial — Tutorial designed to introduce you to the principles behind GPS
• Geoplace — GPS & GIS Industry information
• Neil Ashby: "Relativity in the Global Positioning System"
• Trimble's Online GPS Tutorial — excellent introduction for newbies
• http://www.dbartlett.com The Practical Guide to GPS UTM
• http://www.navcen.uscg.gov/gps/geninfo/y2k/gpsweek.htm Information on the GPS week rollover
• http://www.rand.org/publications/MR/MR614/MR614.appb.pdf PDF document on the history of the GPS system