Titlebook: China Satellite Navigation Conference (CSNC 2024) Proceedings; Volume III Changfeng Yang,Jun Xie Conference proceedings 2024 Aerospace Info

合法

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

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

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

可忽略

圖畫文字

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

疏遠(yuǎn)天際

陳舊

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

大溝

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

顛簸地移動

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