Estimation of the Data Precision Using Variance Component Estimation, with Application to Polar Motion Time Series

Olivier de Viron, University of La Rochelle, La Rochelle, France, Paul Rebischung, LASTIG LAREG, IGN, ENSG, Univ Paris Diderot, Sorbonne Paris Cité, F-75013 Paris, France and Michel J. Van Camp, Observatoire Royal de Belgique, Brussel, Belgium