- Tech know how online

circular error probable (CEP)

Circular Error Probable (CEP) is the scatter radius with which the position accuracy ofnavigation devices

is specified. The CEP value is a probability value. It is

given as a percentage and refers to the radius


a circular area whose center is determined by the GPS system

CEP Probability

CEP Probability

The most commonly used CEP values are the 50% value R50, the 67% value R67 and the 95% value R95. For example, if the displayed CEP value is 50% for a radius of 5 m, then this means that half of all measurement results are within this radius of 5 m, but also half of the measurement values

are outside. Furthermore, it is the case that 95 % of all measurement points are located in a circle with twice the radius, which would correspond to 10 m. The location accuracy of the CEP value can be improved by combining it with other navigation systems.

Informationen zum Artikel
Englisch: circular error probable - CEP
Updated at: 09.09.2019
#Words: 148
Translations: DE