PACT 发表于 2025-3-25 04:28:44
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https://doi.org/10.1007/b138426orbit determination based on ground anchor stations can improve the accuracy and survivability of the navigation system, but it has the rotation error. The addition of the ground anchor stations is a valid way to solve the problem. Because of the limited calculation resources on the satellite boardsMalcontent 发表于 2025-3-25 18:12:19
https://doi.org/10.1007/b138426rder of the expansion into spherical harmonics increases. In order to enhance the computational efficiency for high-fidelity geopotentials, a Global Point Mascon model and a fast algorithm using GPU-based parallel computing are presented in this paper. The GPU-based parallel computing is implemented大气层 发表于 2025-3-25 20:35:30
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Gallenblasen- und Gallenwegskarzinom, by using the SLR normal point (NP) data provided by EDC and CDDIS from July 1 2013 to May 1 2012. Then, a long-term validation of the CODE precise orbit is carried out by using the SLR data from January 1 2003 to March 3 2014 of EDC. The results show that the number of SLR data provided by EDC is l最有利 发表于 2025-3-26 17:10:25
Gallenblasen- und Gallenwegskarzinom,ou satellites is not perfect because of the little running time, which also limits the precision of multi-days orbit. The method of multi-days BeiDou satellite orbit combination is presented. In this method, normal equation stacking is used to combining some consecutive one-day BeiDou satellite orbi