An indicator of satellite geometry for a constellation of satellites used to determine position. Positions with a higher PDOP value generally constitute poorer measurement results than with lower PDOP value.
osition ilution recision is the geometric DOP parameter.
Position Dilution of Precision, a figure of merit (used without units) expressing the relationship between the error in user position and the error in satellite position, which is a function of the configuration of satellites from which signals are derived in positioning (see DOP). Geometrically, PDOP is proportional to 1 divided by the volume of the pyramid formed by lines running from the receiver to four observed satellites. Small values, such as "3", are good for positioning while higher values produce less accurate position solutions. Small PDOP is associated with widely separated satellites.
Position Dilution of Precision. Positional Error by Modulation Type Error Type Mode S/A off S/A on C/A code P code Carrier Phase 1,575.42 MHz 1,227.60 MHz Autonomous(1) Differential(2) Autonomous Differential Autonomous Differential 25 m5 m 10 m2 m 25 m0.1 m 100 m5 m 10 m2 m 100 m0.1 m(1) = rover unit only. (2) = base station plus rover unit.
Position Dilution of Precision, a unitless figure expressing the relationship between the error in the user position and the error in satellite position. PDOP is proportional to 1 divided by the volume of the pyramid formed by lines running from the receiver to four observed satellites. Good values are 3-4 or less, 7 or above is poor. PDOP2 = HDOP2 + VDOP2
Position dilution of precision. PDOP is a unitless measure that indicates when satellite geometry will provide the most accurate results. A low PDOP indicates the satellites are nicely arranged to give a good position. The PDOP may be improved by facing the GPS antenna towards the equator where more satellites are located.
See Geometric Dilution of Precision
Percent Dilution of Position. Measure of the geometrical strength of the GPS satellite configuration. The amount of error in your position. PDOP less than 4 gives the best accuracy (under 1 meter). Between 4 and 8 gives acceptable accuracy. Greater than 8 gives poor accuracy.
(Precision Dilution of Position): PDOP is an estimate of the accuracy of a GPS position fix based on the quality of the satellite signals (which is a result of the satellite distribution at the time of the determination).
Position Dilution of Precision. A positioning of the satellites with respect to the GPS receiver that modifies the error in the GPS position solution. [Section 4.1.2.1
Position Dilution of Precision. This is a number that indicates the relative accuracy of the GPS positions calculated by the receiver in the field. It takes into account each satellite s location relative to the other satellites (the satellite geometry). The higher the number, the less accurate the reported position.
Position Dilution of Precision. A summary DOP indicator that shows horizontal, vertical and time related error all in one figure. See Dilution of Precision.
Position Dilution of Precision. regulates amount of interference the rover unit accepts and still records data; the lower, the better.