Filtration of Observations of Angular Distributions of Muon Fluxes from the URAGAN Hodoscope

The problem of noise filtering in observations of 2D functions of muon flux intensity distributions from the URAGAN hodoscope is considered. A filtering method based on the construction of sliding approximate local 2D models is proposed. A filtering algorithm based on sliding local piecewise linear 2D models is developed. The results of testing the algorithm on model and experimental observations for problems of Forbush decrease detection are presented. Errors of the algorithm are estimated on the basis of statistical modeling.