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The Global Competitive Situation and Strategy of Space Frequency and Orbit Resources
Published 2021-06-01“…Combined with ITU Radio Rules and the actual in-orbit satellites situation, the satellite communication frequency resource allocation, the regulation and the use of orbital positions were analyzed, the planning and frequency-orbit resources of the international mainstream low-orbit internet constellations were expounded, and the satellite networks information on China's low-orbit constellation was listed.For the development of low-orbit internet constellations, it was proposed that China's low-orbit internet constellations should be based on China's national conditions, the new technologies and frequency bands should be used, to resolve the frequency resources bottleneck.…”
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A Dual-Port Dual-Wideband Dual-Sense Circularly Polarized DRA With a Novel Feeding Mechanism
Published 2025-01-01Get full text
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Study on the Influence of Introducing Al Transition Layer on Deuterium Resistance of Al2O3 Coating
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An Efficient Adaptive Anticollision Algorithm Based on 4-Ary Pruning Query Tree
Published 2013-12-01Get full text
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3D Localization of FRB 20190425A for Its Potential Host Galaxy and Implications
Published 2025-01-01Get full text
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MAMMOTH-Subaru. II. Diverse Populations of Circumgalactic Lyα Nebulae at Cosmic Noon
Published 2024-01-01Get full text
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A Dual Active Black Hole Candidate with Mass Ratio ~7:1 in a Disk Galaxy
Published 2025-01-01Get full text
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Ionospheric Storm Scale Index Based on High Time Resolution UPC‐IonSAT Global Ionospheric Maps (IsUG)
Published 2021-11-01Get full text
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FEASTS: Radial Distribution of H i Surface Densities Down to 0.01 M⊙ pc−2 of 35 Nearby Galaxies
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MSA-3D: Metallicity Gradients in Galaxies at z ∼ 1 with JWST/NIRSpec Slit-stepping Spectroscopy
Published 2025-01-01Get full text
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