Dilution of precision (GPS)

Understanding the Geometric Dilution of Precision (GDOP) with a simple example. In A someone has measured the distance to two landmarks, and plotted their point as the intersection of two circles with the measured radius. In B the measurement has some error bounds, and their true location will lie anywhere in the green area. In C the measurement error is the same, but the error on their position has grown considerably due to the arrangement of the landmarks.

Navigation satellites with poor geometry for Geometric Dilution of Precision (GDOP).

Navigation satellites with good geometry for Geometric Dilution of Precision (GDOP).

Dilution of precision (DOP), or geometric dilution of precision (GDOP), is a term used in satellite navigation and geomatics engineering to specify the additional multiplicative effect of navigation satellite geometry on positional measurement precision.

单词	Horizontal Dilution Of Precision
释义	Horizontal Dilution Of Precision 英语百科 Dilution of precision (GPS) Dilution of precision (DOP), or geometric dilution of precision (GDOP), is a term used in satellite navigation and geomatics engineering to specify the additional multiplicative effect of navigation satellite geometry on positional measurement precision.
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Horizontal Dilution Of Precision

Dilution of precision (GPS)