This article pertains to the Global Positioning System. For the connotation pertaining to computer graphics, see Dilution of precision (computer graphics).Dilution of precision (DOP) or Geometric Dilution of Precision (GDOP) is a GPS term used in geomatics engineering to describe the geometric strength of satellite configuration on GPS accuracy. When visible satellites are close together in the sky, the geometry is said to be weak and the DOP value is high; when far apart, the geometry is strong and the DOP value is low.
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