Abstract The basic data for polar motion parameter prediction usually applies the final solution product published by the international earth rotation and reference systems service, which has a data resolution of 1 day. In this paper, we use the radial basis function to interpolate polar motion observations, and obtain polar motion products with a resolution of 6 hours. We test 500 sets of prediction experiments based on LS+AR model. The experimental results show that compared with the prediction results without interpolation, the prediction accuracy of proposed method in the polar motion X and Y directions improves by 22.4% and 38.4% in the ultra-short-term forecast of 1-7 days.
WU Fei,WANG Leyang,ZENG Zhiqing et al. Research on Polar Motion Parameter Prediction Based on Radial Basis Function Interpolation[J]. jgg, 2024, 44(7): 690-692.
WU Fei,WANG Leyang,ZENG Zhiqing et al. Research on Polar Motion Parameter Prediction Based on Radial Basis Function Interpolation[J]. jgg, 2024, 44(7): 690-692.