A method for determining LDN confidence ellipse information for ground-strike points

This paper describes a method for determining confidence information for LDN ground-strike points. Ground-strike points can be determined using clustering algorithms and in the process, the strike point location is refined. However, the confidence ellipse information is lost when this is done. By treating stroke detections as multiple observations of the same event, Gaussian merging techniques can be used to develop a confidence ellipse for LDN ground-strike points.