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DGPS-seadmed

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ID 719456 Viimati muudetud 30.12.2004
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Valdkond merendus ja meretransportnavigatsioon
DGPS equipment eelistatud
  • DGPS - diferentsiaalne ülemaailmne kohamääramise satelliitsüsteem
  • DGPS - differential global positioning system
  • DGPS (Differential GPS) - a form of GPS in which the reliability and accuracy are enhanced by broadcasting a time-varying correction message from a GPS monitoring receiver (Differential Mode) at a a known position on shore. The corrections are fed automatically to the GPS receiver on board and used to compute an improved position.
DGPS-seadmed
DGPS equipment eelistatud
Näited
  • A GPS (Global Positioning System) receiver is placed at a known reference location. This reference receiver can easily determine the distance from its location to the satellites. These distances are now compared to the measured ranges and so the errors on the ranges can be determined. These range errors are broadcast to the GPS receivers in the surrounding to correct their range measurements as well. Using this technique the accuracy of horizontal position can be improved to 10 m (95% probability).

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