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1. GPS
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GPS |
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... Paul Winters Technology, Society, and Culture HUMN432 Global Positioning System (GPS) We can all get lost. ... It is the Global Positioning System (GPS) – and it is free and easy to use. GPS is now everyday word to us and even to some people GPS is an everyday stuff thanks to driving GPS. However, how it works might not be very familiar; therefore What GPS is, short history of GPS, how it works, technologies and advantages will be discussed. The first question is what GPS is. The Global Positioning System (GPS) is “a satellite-based navigation system that was developed by the U. ... ” (El-Rabbany, 1) Already mentioned, initially, GPS was developed as a military system to fulfill U. ... Three satellite systems were explored before the GPS programs. … The GPS program was approved in December 1973. ... In August 1993, GPS had 24 satellites in orbit. … In February 1994, the Federal Aviation Agency (FAA) declared GPS ready for aviation use. ... Then, why use GPS? There are specific and obvious reasons to use GPS over other positioning system devices. First of all, GPS is cost effective. GPS demands low initial cost and operating cost because once you buy a GPS receiver for several hundred dollars then the service is provided for free. ... However, you do not need to worry about to service fee for using GPS service since it is provided for free even all around the world. ... Once operational, the GPS reference station is completely automatic. ... “in order to provide their own local control points, high accuracy GPS users typically need to buy at least two GPS receivers for each field crew. A GPS reference station eliminates the need for the second receiver. ... If you have a GPS receiver in your hand, turn it on. ... You don’t need to worry about the time to use GPS. ... Productivity and time-saving are the advantages of using GPS as well. ... (Trimble Navigation Limited) Those are several reasons for GPS to be most popular positioning system nowadays. How GPS works? First of all, we have to know the components of GPS. GPS consists of three segments: “The Space Segment, the control segment, and the user segment. ... Coast Guard Navigation Center) The Control Segment is “a group of ground stations that monitor and operate the GPS satellites. ... ” (NMT) The User Segment consists of “the receivers, processors, and antennas that allow land, sea, or airborne operators to receive the GPS satellite broadcasts and compute their precise position, velocity and time. |
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Title: GPS
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