合法
发表于 2025-3-23 09:44:13
Assessment of Solar Radiation Pressure Models for BDS-3 MEO Navigation SatellitesM1 with a prior Box-wing model, ECOM2 with a prior Box-wing model, ECOM1 with an empirical force model, ECOM2 with an empirical force model) that commonly used for BDS-3 MEO satellites. The results indicate that compared with ECOM1 model, ECOM2 model can reduce orbit overlap error by 5.02% when sate
Aesthete
发表于 2025-3-23 15:26:01
Combined Processing of Outlier and Multipath in GNSS Precise Point Positioning20.3%, 49.2% and 13.6% in E, N, and U directions, respectively. Hence, the proposed method considering both the outlier and multipath can effectively improve the PPP positioning performance, especially under complex environments.
FEAS
发表于 2025-3-23 18:03:41
Polar Motion Prediction Based on the Combination of Weighted Least Squares and Vector Autoregressiveccurate than those by LS+AR. Furthermore, the medium-term predictions beyond 90 days can be improved by WLS+VAR in comparison with the prediction values provided by the IERS Bulletin A. The improvement in the prediction accuracy can reach up to 20%.
ARCH
发表于 2025-3-23 23:08:09
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可忽略
发表于 2025-3-24 03:44:21
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图画文字
发表于 2025-3-24 10:11:47
https://doi.org/10.1007/978-3-319-28305-0y of the three recurrent neural network models is equivalent, the average accuracy is more than 90%, and the prediction accuracy from high to low is GRU, RNN, and LSTM. The prediction method based on the cyclic neural network adopted in this paper can be applied to the state prediction of time serie
疏远天际
发表于 2025-3-24 10:47:16
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陈旧
发表于 2025-3-24 15:24:27
Minze Stuiver,Gordon W. Pearsony, benefits of integrating ISL with ground tracking are still visible even with a denser global network. In this case, an average reduction of ~28% in orbit DBD 1D RMS can be observed after integrating ISL measurements, decreasing from 5.12 cm to 3.59 cm. In addition to range measurements, the profi
大沟
发表于 2025-3-24 21:05:13
https://doi.org/10.1007/978-1-4757-4249-7this paper analyses the stability differences between CNES BIAS phase fractional deviation product systems, between satellites and between frequencies; achieves fast convergence of the BDS-3/GNSS full-frequency PPP-AR by optimising the partial ambiguity fixation algorithm, and analyses the contribut
颠簸地移动
发表于 2025-3-25 02:51:10
Cosmogenic , Radiocarbon on the Earththermore, it is observed that selecting a suitable parameter estimation method leads to an improvement in both ZTD accuracy and PPP positioning accuracy. According to those results, we recommend the following order of preference for the four parameter estimation methods: RW, PWC:120, PWC:180, and PW