Geyser
发表于 2025-3-30 11:38:08
1876-1100 the academician of Chinese Academy of Sciences (CAS); .LIU Jingnan .is a professor at Wuhan University. .FAN Shiwei. is a researcher at China Satellite Navigation Office; .LU Xiaochun. is an academician of Chinese Academy of Sciences (CAS)..978-3-662-51661-4978-3-662-46632-2Series ISSN 1876-1100 Series E-ISSN 1876-1119
自传
发表于 2025-3-30 14:07:52
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beta-cells
发表于 2025-3-30 16:39:02
Parametric Study of Solar Radiation Pressure Model Applying to Navigation Satellite Orbit DeterminatTRP), Earth radiation pressure (ERP). The influence of SRP model parameters had been analyzed in precise orbit determination by long arc orbit calculation. According to the analyzed result, the adjust strategy of the parameters of SRP model had been given for long arc orbit determination, thus the r
拥挤前
发表于 2025-3-30 22:08:34
BDS/GNSS Real-Time Kinematic Precise Point Positioning with Un-differenced Ambiguity ResolutionCB) of BDS IGSO and MEO satellites kept stable; The precision were less than 1 cm in plane direction and 3 cm in vertical direction after the fusion of BDS, GPS and GLONASS even without ambiguity resolution, respectively; It not only raised the precision of positioning but also quicken the convergen
BOOST
发表于 2025-3-31 01:09:43
Characteristics Analysis of BeiDou Melbourne-Wübbena Combinationthe superposition of the systematic biases of two satellites observations. By single-differencing between receivers, different characteristics are shown for different types of satellites and different baseline distances. The systematic biases of IGSO and MEO MW combination series can be cancelled ou
类人猿
发表于 2025-3-31 08:45:52
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新星
发表于 2025-3-31 09:23:26
Integrating BDS and GPS to Accelerate Convergence and Initialization Time of Precise Point Positioni is better than single system PPP solutions. For PPP daily solutions, however, the positioning accuracy is not significantly improved. Finally, the integer ambiguity resolution of PPP was conducted. Only the GPS ambiguities were fixed and leaved BDS ambiguities as float values. The experiment result
不断的变动
发表于 2025-3-31 17:15:40
Study on BeiDou Navigation Satellite Precise Orbit Determination Based on the Extended Kalman Filter based on the observation of Compass Experimental Test Service network (CETS). Two types for comparison for BDS orbit determination accuracy are used, which are inner and outer consistency test. Although the results show that the accuracy of Orbit Study is 10 cm worse than PANDA in radial direction,
Common-Migraine
发表于 2025-3-31 21:04:21
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senile-dementia
发表于 2025-4-1 01:37:57
Upper Atmospheric Density Retrieval from Accelerometer on Board GRACE Missionperiment, we use the dynamical orbit determination strategy to calibrate the accelerometers, and then retrieve the air density at the altitude of GRACE Mission. The results show that prediction models cannot exhibit the density variation in high frequency, and the in situ measurements are very usefu