Horizontal Dilution of Precision (HDOP)
Used in satellite navigation and positioning systems to quantify the accuracy of horizontal position measurements. It is a unitless factor that indicates the geometric quality of the satellite configuration in relation to the receiver’s position. A lower HDOP value indicates a more accurate horizontal position, while a higher HDOP value indicates a less accurate position due to factors such as satellite geometry, signal obstructions, and atmospheric conditions.
This downloadable table outlines the likely position accuracy based on the receiver’s reported DOP number.
Dilution of Precision Scale
Table of HDOP ranges and their associated meanings. When establishing the accuracy of our GNSS (GPS) fix, we need to understand the Dilution of Precision (DOP), sometimes referred to as Horizontal Dilution...More Details
