Article ID Journal Published Year Pages File Type
4683746 Geodesy and Geodynamics 2012 8 Pages PDF
Abstract

:In this paper, an improved weighted least squares (WLS), together with autoregressive (AR) model, is proposed to improve prediction accuracy of earth rotation parameters(ERP). Four weighting schemes are developed and the optimal power e for determination of the weight elements is studied. The results show that the improved WLS-AR model can improve the ERP prediction accuracy effectively, and for different prediction intervals of ERP, different weight scheme should be chosen.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Earth-Surface Processes
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