Kalman Filter Analysis of SEARCH'92 VLBI Data

Details Kalman Filter Analysis of SEARCH'92 VLBI Data Kalman Filter Analysis of SEARCH'92 VLBI Data

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994itn....16d...3h&link_type=abstract

Results from the SEARCH'92 Campaign. (IERS Technical Note ; 16), Edited by J.O. Dickey and M. Feissel. Paris: Central Bureau of

Computer Science

Scientific paper

An analysis of the very long baseline interferometer data collected during the Epoch 1992 campaign is presented. A Standard analysis is discussed in which tidally coherent, diurnal and semidiurnal polar motion and UT1-UTC variations are applied prior to Kaiman filtering the VLBI data for stochastic estimates of 3-hourly binned estimated of pole position and UT1-UTC. Variams of this analysis are discussed to show the sensitivity of the results choiee of process noise parameters and the apriori applkatkm of die tidally coherent modeis. Here the residuals between a smoothed VLBI polar motion and UT1 apriori series are shown. For pole position, this apriori series is very similar to IERS Bulletin B. For UT1, the use of the VLBI series reduces by half the size of the UT 1 residuals compared to IERS Bulletin B.

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