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Global Positioning System Part 2
Accuracy Best case The position calculated by a GPS receiver relies on three accurate measurements: the current time, the position of the satellite, and the time delay for the signal. Errors in the clock signal can be reduced using the method above, meaning that the overall accuracy of the system is generally based on the accuracy of [...]
Continue reading...Latitude and Longitude Getting Started
11. March 2009
The fundamental work of a geographer begins by describing the location of the topic under study. In order for us to identify the location of some place on a map we need a locational reference system. Latitude and longitude comprises a grid system of lines encircling the globe and are used to determine the locations of [...]
Continue reading...Global Positioning System Part 1
11. March 2009
The Global Positioning System, usually called GPS, is the only fully-functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing signals by radio to GPS receivers, allowing them to accurately determine their location (longitude, latitude, and altitude) in any weather, day or night, anywhere on Earth. GPS satellite in orbit, [...]
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11. March 2009
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