Results 151 to 160 of about 305,238 (305)
A generalized transmultiplexer and its application to mobile satellite communications [PDF]
A generalization of digital transmultiplexer technology is presented. The proposed method can realize transmultiplexer (TMUX) and transdemultiplexer (TDUX) filter banks whose element filters have bandwidths greater than the channel spacing frequency ...
Ichiyoshi, Osamu
core +1 more source
Dynamic Multifunctional Metasurfaces Based on Passive Cascade Structure
Electron, EarlyView.A dynamic multifunctional metasurface is proposed in this paper. Unlike mainstream multifunctional metasurface based on programmable metasurfaces, it consists of two passive metasurfaces, presenting a significant cost advantage. By controlling the displacement, different functions such as beam steering, focusing, and OAM wave generation can be realized
Xiangming Wu +5 more
wiley +1 more source
Transformer-Based Nonlinear Blind Source Separation for Anti-Jamming in DSSS Satellite Communications. [PDF]
Sensors (Basel)Sun X, Li C, Li J, Su Q.
europepmc +1 more source
Service offerings and interfaces for the ACTS network of Earth stations [PDF]
The Advanced Communications Satellite (ACTS) is capable of two modes of communication. Mode 1 is a mesh network of Earth stations using baseband-switched, time-division multiple-access (BBS-TDMA) and hopping beams.
Coney, Thom A.
core +1 more source
The EU's Strategy for Sustainability: A Landmark Turn With the European Green Deal?
European Policy Analysis, EarlyView.ABSTRACT While the European Green Deal (EGD) has been widely recognized as a milestone in the EU's sustainability strategy, scholars disagree on the nature of the policy change it represents. Critics highlight its limited social and environmental ambitions, despite its portrayal as a “man on the moon” moment.
Ekaterina Domorenok, Franco Gatti
wiley +1 more source
Statistical CSI-Based Beamspace Transmission for Massive MIMO LEO Satellite Communications. [PDF]
Entropy (Basel)Dong Q +5 more
europepmc +1 more source
iMeta, EarlyView.Nano‐pesticides are driving a paradigm shift toward sustainable plant protection. This review systematically synthesizes recent advances across four interconnected domains: (i) intelligent formulation design for targeted delivery and controlled release; (ii) interfacial behavior regulation to enhance foliar deposition; (iii) multi‐omics elucidation of ...
Xile Deng +14 more
wiley +1 more source
Compendium of Applications Technology Satellite user experiments [PDF]
The achievements of the user experiments performed with ATS satellites from 1967 to 1973 are summarized. Included are fixed and mobile point to point communications experiments involving voice, teletype and facsimile transmissions. Particular emphasis is
Engler, N. A. +2 more
core +1 more source
Recent advances in organic broad‐spectrum photodetection materials and devices
InfoMat, EarlyView.Graphical Abstract This review systematically outlines the evolution of organic photodetectors from fullerene‐based to advanced non‐fullerene acceptors, highlighting how molecular engineering (e.g., D–A, quinoidal, and A‐D‐A′‐D‐A architectures) extends spectral response into the short‐wave infrared region.
Yilin Zhao +3 more
wiley +1 more source