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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

D. Yan

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2 papers indexed here

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Open access Aug 2026

Correction of Star Catalog Positional and Proper-motion Systematic Errors for Natural Satellite Astrometry

Precise orbit determination of natural satellites relies on the consistent combination of heterogeneous astrometric observations spanning long time intervals. However, the use of different reference star catalogs introduces spatially correlated systematic biases that degrade data consistency and limit orbit accuracy. I...

Z. Yang, H.-Y. Zhang, K. Tang et al. · 0 citations
Open access Jul 2026

High-precision Astrometry of Saturnian Major Satellites: Halo Reduction and Optical Filter Evaluation

High-precision astrometry of planetary satellites is important for refining ephemerides and supporting deep-space exploration missions. We apply the Bilateral-filtered Single-Scale Retinex with Gaussian regularization (BSSR-Gaussian) method to 140 CCD images of Saturn obtained at Yunnan Observatory and evaluate the p...

Z.Y. Wang, Hui-Yan Zhang, Rong-Chuan Qiao et al. · 0 citations

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