Results 191 to 200 of about 4,658 (241)

Unsupervised multimodal deep learning for galaxy morphology taxonomy: integrating ConvNeXtEmbeddings and morphological parameters for scalable survey science. [PDF]

Sci Rep
Selim IM, Farahat AS, Basmsm LH, El-Hameed AMA.   +3 more
europepmc   +1 more source

Insights From the Alphasat Aldo Paraboni Experiment at Tito Scalo and Spino d'Adda: Characterizing Scintillation and Rain Attenuation at Ka‐ and Q‐Band Frequencies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT We present experimental results on the relationship between rain attenuation and simultaneous scintillation during rain events, based on beacon signal measurements at 19.7 (Ka‐band) and 39.4 GHz (Q‐band) from the geosynchronous Alphasat satellite (25° E), received at two Italian ground stations, Spino d'Adda (42.1° slant path) and Tito Scalo ...
Miles Turner, Alef Comisso, Carlo Riva, Lorenzo Luini, Giuseppe Codispoti, Giorgia Parca   +5 more
wiley   +1 more source

Infrared and visible image fusion algorithm based on NSCT and improved FT saliency detection. [PDF]

Sci Rep
Fan X, Kong F, Shi H, Guo Y.
europepmc   +1 more source

Low‐Complexity Hybrid Beamforming for LEO Satellites: Beam Update Rate Analysis and Advanced Adaptive Precoding

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani, Thomas Delamotte, Andreas Knopp   +2 more
wiley   +1 more source

Skyglow-Induced Luminance Gradients Influence Orientation in a Migratory Moth. [PDF]

Insects
Ji Y, Ma Y, Wen Z, Gao B, Foster JJ, Yu D, Wu Y, Wan G, Hu G.   +8 more
europepmc   +1 more source

Comprehensive UAV and ground data for typical semiarid sites in the midstream of the Heihe River Basin. [PDF]

Sci Data
Zhou J, Wang Z, Liu S, Li M, Ma J, Meng L, Feng N.   +6 more
europepmc   +1 more source

Infrared Monocular Depth Estimation Based on Radiation Field Gradient Guidance and Semantic Priors in HSV Space. [PDF]

Sensors (Basel)
Hao R, Xu C, Zhong C.
europepmc   +1 more source

Spherical Polar Pattern Matching for Star Identification. [PDF]

Sensors (Basel)
Fu J, Lin L, Li Q.
europepmc   +1 more source

Relationship Between Darkness and Healing of Night Sky in Planetarium. [PDF]

Int J Environ Res Public Health
Tanaka M, Otani K, Horiuchi T.
europepmc   +1 more source