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distance root mean square (drms)

To better determine the position accuracy of navigation satellites, the root mean square (drms) is formed. This is the root mean square value of the deviation of the distance between the correct values and the value determined over several measurements. In the GPS system, two drms values are usually used, which lie in a circle marked with certain deviations and represent 95% of all measured values.

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Englisch: distance root mean square - drms
Updated at: 26.03.2008
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