Titlebook: China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume II; Jiadong Sun,Changfeng Yang,Jun Xie Conference proceedings 2020 T

剧本

Consensus

Abdominal Ultrasonography in ,-Thalassemia accuracy of R direction is more significantly improved by 28.8% and 46.4% respectively. In addition, with the estimated PCO parameters, the RMSE of station coordinates static PPP is reduced by 11.9% and 9.5% in the horizontal and elevation directions respectively.

BRACE

Modeling of BDS Positioning Errors Due to Ionospheric Scintillation and Its Applicationtillation related ionospheric irregularity are also accounted for. Then, BDS positioning performance is analyzed with the constructed models for typical scintillation scenarios with the output of GISM (Global Ionospheric Scintillation Model). The Results show the rationality of the models.

袭击

Initial Results of BDS3 GEO Orbit Determination with Inter-satellite Link Measurements18 MEO satellites and GEO satellite is less than 45 cm, and that between the other 8 MEO satellites and GEO satellite is less than 56 cm. RMS of GEO 48-h OOD is no greater than 2.4 m in position and no greater than 0.2 m in radial direction.

有抱负者

A Combined RDSS/RNSS Orbit Determination Method to Improve the Service Performance of RDSSSS/RDSS data. The results showed that the accuracy of the RDSS time delay was 3.73 ns in continuous 7 days. The positioning experiments were made respectively by the original and adjusted time delay values. The mean horizontal positioning accuracies of the five RDSS users were increased from 15.01 m to 2.46 m.

不可比拟

Error Analysis and Strategy Optimization of East-West Control for BEIDOU GEO Satelliteicient; give the optimization steps of East-West keeping control strategy. These can improve the accuracy of the East-West keeping control, reduce the times of the East-West keeping control as much as possible, reduce the impact of the control task on the satellite business.

辞职

Estimation of BeiDou Satellites Antenna Phase Center Offsets accuracy of R direction is more significantly improved by 28.8% and 46.4% respectively. In addition, with the estimated PCO parameters, the RMSE of station coordinates static PPP is reduced by 11.9% and 9.5% in the horizontal and elevation directions respectively.

镇痛剂

倔强一点

Test and Evaluation of the Distributed Autonomous Orbit Determination with the BDS Inter-satellite R navigation constellation with 18 MEO satellites; the simulation accuracy of the autonomous orbit determination is 0.80 m, which confirms the validity of the proposed method and establish a firm foundation for the engineering implementation of the autonomous navigation for the BDS.

别名