Abstract
The results of the work on the improvement of programs and methods for the joint processing (combining) of measurement results of various types (radio-interferometry with extra-long bases, satellite laser ranging, measurements based on the results of receiving signals from global navigation satellite systems) at the Main Metrology Center of the State Service for Time, Frequency, and Earth’s Rotation Parameters Evaluation are described. Methods of combining the results of various measurements at the measurement levels and time series level are considered. The accuracy of determining universal time was improved by the post-correlation- processing of measurement results obtained from new 13-meter antennas of a two-element radio interferometer at the colocation assemblies of the Institute of Applied Astronomy of the Russian Academy of Sciences. The accuracy of determining the combined values of the Earth’s rotation parameters was increased due to the following: improvement in the accuracy of the individual series obtained by processing various measurements determined by different data processing and analysis centers and improvement of combination algorithms.
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