GPS - Global Positioning System Essay -- physics global positioning sy

What is GPS?The Global Positioning System (GPS) was developed by the role of Defense and consists of a group of 24 satellites which argon monitored by phoebe bird ground stations. It essentially allows you to pinpoint your location anywhere on the issue of the Earth, even in cloudy weather, with the use of a GPS receiving system. The GPS receiver is a navigational device that uses these satellites as reference points to face your position on the ground. It does this by triangulating your position between at least 3 satellites. The GPS receiver uses the time it takes the coded radio set signal to get from the satellite to the receiver to calculate the distance it is from that satellite. So, by accurately measuring the distance from the ground to these satellites, it prat triangulate your position.GPS consists of 3 basic whiles 1. Control The control part is the central part of GPS. This is where the satellites are monitored and adjustments (atmospheric correctio ns, timing corrections, etc.) are made. There are 5 stations located worldide and each satellite passes over a monitoring station twice a day. 2. Space The space part is the NAVigation Satellite Timing And Ranging (NAVSTAR) group of satellites that bradcast the GPS signals. There are 24 satellites orbiting at about 20,200km above the Earth. They each make one variety approximately every 12 hours. 3. User Consists of a user and a GPS receiver. The possible applications of GPS are limitless. Satellite Ranging GPS is found on satellite ranging. This proficiency of measurement is based on timing how long it takes a radio signal to travel from the satellite to the GPS receiver a... ...or short, consists of both satellites and ground based stations that supply correction information for your GPS receiver. This correction information bear provide an improvement in positional accuracy of up to tail fin times greater. It corrects for GPS signal errors ca used by atmospheric disturbances, timing, and other errors. WAAS was developed by the FAA in order to help increase the accuracy of precision course approaches. The corrected information is broadcast through two geostationary satellites that are located at a fixed location over the equator. whole kit and caboodle Cited Trimble http//www.trimble.com/gps/ The Aerospace Corporation http//www.aero.org/publications/GPSPRIMER/index.html CMT http//www.cmtinc.com/gpsbook/index.htm Garmin http//www.garmin.com/aboutGPS/ GPS Mapping for GIS., 2001, Trimble Navigation Limited.