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Topic: GPS Navigation Then, Now, and the Future_2_3 |
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lB2oI5lF9g
 
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GPS Navigation Then, Now, and the Future_2_3
« on: October 16th, 2013, 2:40pm »
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相关的主题文章: The Global Positioning System has been active for sometime,Cartier Ballon Bleu Two Tone Womens Watch W69007Z3, with a number of upgrades. The origins were military, aviation, and seafaring consumers. In the old days, navigators would use the positions of stars to figure out where they were, and where they were headed. Some of them were quite effective at this. GPS navigation isn't that much different! GPS navigation involves multiple satellites in the earths atmosphere transmitting signals to devices that can then determine there current location on the ground. With advances in computerizations these devices have been extended to do about the same that old world navigators would do, and much more. The satellites began being launched in 1978 and since they have accumulated a network of 24 of them globally. These satellites give full coverage for GPS navigation everywhere with reasonable accuracy. To the consumer that part is free. There is no service charge to pay for that; though additional maps and other features that don't originate from these satellites may have fees. The Many Uses For GPS Navigation One of the earliest places that enjoyed widespread GPS navigation would have to be aviation of all sizes,Cartier Ballon Bleu Automatic Two Tone Mens Watch W69009Z3. Pilots found it easy to chart their systems to keep them on track for various airports using either ground signals or those from the satellites. Today GPS is a major use in this area. Later it entered the consumer market in expensive luxury vehicles. GPS navigation features showed up in a number of foreign vehicles and in the well known on-star sys
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