GPS Presentation

GPS Presentation Introduction to GPS GPS stands for Global Positioning System. The system consists of iii comp adeptnts: 1.A Spatial Component: 24 NAVSTAR (NAVigation System with Time And Ranging) Satellites. These Satellites orbital cavity of force around the earth every 12 hours, at an tiptop of 10.200 km. Each satellite has atomic clocks, that transmit cardinal wirelesscommunication bespeaks, L1 (1575.42 MHz) and L2 (1227.60 MHz). Modulated onto these signals ar two reckons: the C/A edict (Course/Acquisition) and the P-Code (Precise). 2.A Monitoring Component: four Ground-Based Monitor Stations. fighter is the master control station, which calculates satellite paths and clock correction coefficients. These argon send to the three upload stations, which send them to the satellites to correct all errors. 3.A User Component: a GPS telephone receiver. Measuring the status pass on signals and write in codes Each GPS satellite transmits two radio signals, L1 (1575.42 MHz) and L2 (1227.60 MHz). The L1 signal is modulate with two pseudo-random noise (PRN) ranging codes, P-code and C/A code. The Precision or P-code can be encrypted for military use. The bold/Acquisition or C/A code is not encrypted. The L2 signal is play with the P-code only. Most civilian receivers use the C/A code to obtain GPS information.

To establish when a signal left a satellite the similar PseudoRandom code is generated at the same clip in both the receiver and satellite. The receiver examines the incoming code from the satellite and then looks at how coherent ago it generated the same code. This time difference multiplied by the speed of animated (3 00,000 km/sec) gives the remoteness. Exa! ct coordinates can be calculated for whatsoever position on earth by measuring the distance from a group of satellites to the position. When the distance to one satellite is known, the position can be contract shoot down to the surface of a sphere surrounding that satellite. By utilize a here and now satellite the position is narrowed town to the intersection of two...If you indispensability to get a effective essay, order it on our website: OrderEssay.net

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