A measure of the receiver-satellite(s) geometry. DOP is a geometric calculation of the uncertainty in a position fix. Also referred to as GOP or GDOP.

a numerical indicator of the geometric strength of the satellite constellation in relation to positioning at a certain location and time

A measure of the geometry of the satellites seen by the receiver. DOP relates the statistical accuracy of the satellite measurements to the statistical accuracy of the computed solution. Position Dilution of Precision (PDOP) is a common measure, composed of Horizontal Dilution of Precision (HDOP) and Vertical Dilution of Precision (VDOP). Geometric Dilution of Precision (GDOP) is composed of Time Dilution of Precision (TDOP) and PDOP. The larger the DOP, the less accurate the measurement.

(DOP) A multiplicative factor caused by geometry that modifies ranging between the user and his set of satellites. Also referred to as GOP or GDOP.

The multiplicative factor that modifies ranging error. It is caused solely by the geometry between the user and his set of satellites. Known as DOP or GDOP

The multiplicative factor that modifies ranging error; Its sole cause is by the geometry between the user and his set of satellites. AKA DOP or GDOP

A measure of the GPS receiver/satellite geometry. A low DOP value indicates better relative geometry and higher corresponding accuracy. The DOP indicators are GDOP (geometric DOP), PDOP (position DOP), HDOP (horizontal DOP), VDOP (vertical DOP), and TDOP (time clock offset).

DOP A scale factor representing the contribution of the satellite configuration geometry to the positioning accuracy. Standard terms for GPS applications are

Analysis of satellite geometry and the impact on accuracy. The receiver estimates the amount of position calculation error using measurements based on several factors that reduce accuracy. Better relative geometry and higher corresponding accuracy result in a low DOP (values between 1-3). A high DOP (4 and above) indicates an increasing more error in the position indicated. The DOP indicators are GDOP (geometric DOP), PDOP (position DOP), HDOP (horizontal DOP), VDOP (vertical DOP), and TDOP (time clock offset). See Position Dilution of Precision.

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. 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. The term can also be applied to other location systems that employ several geographical spaced sites.

Dilution of precision is an algorithmic trick used to handle difficult problems in hidden line removal, caused when horizontal and vertical edges lay on top of each other due to numerical instability. Numerically, the severity escalates when a CAD model is viewed along the principal axii or when a geometric form is viewed end-on. The trick is to alter the view vector by a small amount, thereby hiding the flaws.