Positional uncertainty in a coordinate determination system arises from geometric relationships between observation points and the target location. It quantifies the effect of satellite geometry on the accuracy of a derived position. A lower value indicates a stronger geometry and, consequently, a more accurate positional estimate. Conversely, a higher value reflects a weaker geometry and potentially larger errors in the calculated location.
The significance of this measure lies in its ability to assess the reliability of positioning data. It facilitates informed decision-making in applications requiring precise location information, such as surveying, navigation, and mapping. Historically, understanding this concept has been vital for optimizing the deployment and utilization of positioning systems to achieve desired accuracy levels.
