Results 71 to 80 of about 346,454 (233)

Technology requirements for communication satellites in the 1980's [PDF]

open access: yes
The key technology requirements are defined for meeting the forecasted demands for communication satellite services in the 1985 to 1995 time frame. Evaluation is made of needs for services and technical and functional requirements for providing services.
Burtt, J. E.   +5 more
core   +1 more source

Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation V: Onboard software, Data Structure, Telemetry and Telecommand

open access: yes, 2010
The onboard software and data communication in the RT-2 Experiment onboard the Coronas-Photon satellite is organized in a hierarchical way to effectively handle and communicate asynchronous data generated by the X-ray detectors.
A Nandi   +15 more
core   +1 more source

Analysis of satellite-terrestrial frequency sharing technology for 5G and 6G mobile communication

open access: yesDianxin kexue
In recent years, mobile communication technology has developed rapidly, with 5G networks being widely deployed globally, and research on 6G technology is also underway.
HU Yanwei, GONG Jian, MA Zhanshu
doaj  

Small business innovation research. Abstracts of completed 1987 phase 1 projects [PDF]

open access: yes
Non-proprietary summaries of Phase 1 Small Business Innovation Research (SBIR) projects supported by NASA in the 1987 program year are given. Work in the areas of aeronautical propulsion, aerodynamics, acoustics, aircraft systems, materials and ...

core   +1 more source

Task allocation in dynamic networks of satellites

open access: yes, 2011
The management of distributed satellite systems requires the coordination of a large number of heterogeneous spacecraft. Task allocation in such a system is complicated by limited communication and individual satellite dynamics.
Noble, Jason, Van Der Horst, Johannes
core  

Concepts for 18/30 GHz satellite communication system, volume 1 [PDF]

open access: yes
Concepts for 18/30 GHz satellite communication systems are presented. Major terminal trunking as well as direct-to-user configurations were evaluated.
Baker, M.   +4 more
core   +1 more source

An iALM-ICA-based Anti-Jamming DS-CDMA Receiver for LMS Systems

open access: yes, 2018
We consider a land mobile satellite communication system using spread spectrum techniques where the uplink is exposed to MT jamming attacks, and the downlink is corrupted by multi-path fading channels. We proposes an anti-jamming receiver, which exploits
Jung, Hyoyoung   +4 more
core   +1 more source

Spectrum Trading for Satellite Communication Systems with Dynamic Bargaining [PDF]

open access: green, 2018
Feng Li   +5 more
openalex   +1 more source

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