Interstellar scintillations of PSR B1919+21: space–ground interferometry
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx602
Abstract: We carried out observations of pulsar PSR B1919+21 at 324 MHz to study the distribution of interstellar plasma in the direction of this pulsar. We used the RadioAstron (RA) space radiotelescope together with two ground… read more here.
Keywords: ground; space; space ground; psr b1919 ... See more keywords
Jointly Optimized Beamforming and Power Allocation for Full-Duplex Cell-Free NOMA in Space-Ground Integrated Networks
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2023.3251342
Abstract: Space-ground integrated networks (SGINs) have attracted substantial research interests due to their wide area coverage capability, where spectrum sharing is employed between the satellite and terrestrial networks for improving the spectral efficiency (SE). We further… read more here.
Keywords: full duplex; ground integrated; cell free; power ... See more keywords
Archaeological cognition of the Eastern mausoleum of Qin state using integrated space-ground observation tools
Sign Up to like & getrecommendations! Published in 2024 at "Heritage Science"
DOI: 10.1186/s40494-024-01478-w
Abstract: The Eastern Mausoleum of Qin State is a significant component of the Qin Dynasty's royal tombs, reflecting the social development level during the Warring States period (475 BC ~ 221 BC) in China. At the onset of… read more here.
Keywords: eastern mausoleum; space ground; qin; mausoleum ... See more keywords
Polarization properties of Gaussian-Schell model beams propagating in a space-to-ground optical communication downlink.
Sign Up to like & getrecommendations! Published in 2017 at "Applied optics"
DOI: 10.1364/ao.56.001781
Abstract: Based on the extended Huygens-Fresnel principle, the element expression of a cross-spectral matrix of Gaussian-Schell-model (GSM) laser beams propagating in a space-to-ground optical communication downlink is derived analytically. With full consideration of both the source… read more here.
Keywords: optical communication; space ground; polarization; ground optical ... See more keywords
Pre-calculated space-ground integrated structure (P-SGIS) against link cut set (LCS) failures in space-ground integrated optical networks.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.541873
Abstract: Fiber link failure is a common and frequent failure type in terrestrial optical networks (TONs). To guarantee the stable operation of the TON against single or multi-link failures, various kinds of survivability technologies have been… read more here.
Keywords: space ground; link; pre calculated; ground integrated ... See more keywords