Results 11 to 20 of about 14,054 (271)
Improvement of the prediction accuracy of polar motion using empirical mode decomposition
Geodesy and Geodynamics, 2017 Previous studies revealed that the error of pole coordinate prediction will significantly increase for a prediction period longer than 100 days, and this is mainly caused by short period oscillations.
Yu Lei, Hongbing Cai, Danning Zhao
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Analysis and prediction of polar motion using MSSA method [PDF]
Earth, Planets and Space, 2021 Polar motion is the movement of the Earth's rotational axis relative to its crust, reflecting the influence of the material exchange and mass redistribution of each layer of the Earth on the Earth's rotation axis. To better analyze the temporally varying
Xin Jin, Xin Liu, Jinyun Guo, Yi Shen
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Improved Prediction of Polar Motions by Piecewise Parameterization
Artificial Satellites, 2022 Natioinal Time Service Center of Chinese Academy of Sciences, Lintong, Shaanxi, China e-mail: yuanwei.wu@ntsc.ac.cn ABSTRACT. On seanonal timescale, the variation of Earth rotation is mainly regulated by angular momentum exchanges between the solid Earth
Yuanwei Wu +5 more
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Studia Geophysica Et Geodaetica, 2018 By a number of test cases using different sample numbers and sample lengths, we obtain a Radial Basis Function Neural Network (RBFNN) model that is suitable for the short-term forecast of polar motion, especially for the ultra-short-term forecast.
Guocheng Wang +2 more
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Prediction of polar motion and UT1-UTC based on the hybrid EEMD_LSTM model
Geo-spatial Information ScienceAccurate and real-time Earth rotation parameters (ERPs) are crucial for various scientific fields, including astronomy, geoscience, and oceanography.
Chenxiang Wang +3 more
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A fast cold-start method of GPS receiver based on satellite orbit prediction
MATEC Web of Conferences, 2018 Time to first fix (TTFF) is one of the crucial indicators to evaluate the performance of a GPS receiver. In this paper, an orbit prediction algorithm to reduce the TTFF of GPS receivers without a network connection is presented.
Yang Ruihong +3 more
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Advancing polar motion prediction with derivative information
Journal of Applied GeodesyEarth Orientation Parameters (EOP) are essential for monitoring Earth’s rotational irregularities, impacting satellite navigation, space exploration, and climate forecasting.
Ferrandiz, Jose M. +4 more
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Evaluate the Prediction Level of Polar Motion Interpolation for 6 hr in Ideal and Real Environments
Earth and Space ScienceWith the increasing demands for global development, deep space exploration missions are taking place more frequently, rendering the traditional 24‐hr Polar Motion (PM) predictions inadequate for supporting the frequent operations of spacecraft. Therefore,
Wei Miao, Xueqing Xu, Yonghong Zhou
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Protein folding prediction in the HP model using ions motion optimization with a greedy algorithm
BioData Mining, 2018 Background The function of a protein is determined by its native protein structure. Among many protein prediction methods, the Hydrophobic-Polar (HP) model, an ab initio method, simplifies the protein folding prediction process in order to reduce the ...
Cheng-Hong Yang +4 more
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Predicting Sudden Stratospheric Warmings Using Video Prediction Methods
Geophysical Research LettersSudden Stratospheric Warmings (SSWs) are weather phenomena occurring in polar regions, and have a profound impact on mid‐latitude cold waves. In this paper, within a deep learning framework, we introduce video prediction techniques into SSW events ...
Yuhao Du +5 more
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