Results 101 to 110 of about 25,641,075 (274)

Development of a Parent Wireless Assistive Interface for Myoelectric Prosthetic Hands for Children

open access: yesFrontiers in Neurorobotics, 2018
In this study, a one-degree-of-freedom myoelectric prosthesis system was proposed using a Parent Wireless Assistive Interface (PWAI) that allowed an external assistant (e. g., the parent of the user) to immediately adjust the parameters of the prosthetic
Yutaro Hiyoshi   +12 more
doaj   +1 more source

A generalized transmultiplexer and its application to mobile satellite communications [PDF]

open access: yes
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

A Study on Fuel Estimation Algorithms for a Geostationary Communication & Broadcasting Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
It has been developed to calculate fuel budget for a geostationary communication and broadcasting satellite. It is quite essential that the pre-launch fuel budget estimation must account for the deterministic transfer and drift orbit maneuver ...
Jong Won Eun
doaj  

Brief state-of-the-art review on optical communications for the NASA ISES workshop [PDF]

open access: yes
The current state of the art of optical communications is briefly reviewed. This review covers NASA programs, DOD and other government agency programs, commercial aerospace programs, and foreign programs.
Hendricks, Herbert D.
core   +1 more source

Throughput and Robustness Guaranteed Beam Tracking for mmWave Wireless Networks

open access: yes, 2017
With the increasing demand of ultra-high-speed wireless communications and the existing low frequency band (e.g., sub-6GHz) becomes more and more crowded, millimeter-wave (mmWave) with large spectra available is considered as the most promising frequency
Fang, Xuming, Long, Yan, Zhou, Pei
core   +1 more source

Hybrid system of communication and radio determination using two geostationary satellites [PDF]

open access: yes
A new hybrid satellite system which can provide both communications and positioning services in one system using two geostationary satellites is discussed. The distinctive feature is that location information can be provided by transmitting and receiving
Matsumoto, Yasushi   +3 more
core   +1 more source

A System Design and Analysis for Satellite Communication Link [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
A satellite RF communication link is analyzed based on a simple fundamental equations by systematic approach in this paper. The number of variables related to a design and analysis of satellite RF link is often a dozen or more, thus it is a tedious and ...
Tae Jin Chung, Jong Won Eun
doaj  

An overview of the OmniTRACS: The first operational mobile Ku-band satellite communications [PDF]

open access: yes
The service features of the OmniTRACS system developed by Omninet Communications Services of Los Angeles, California are described. This system is the first operational mobile Ku-band satellite communications system that provides two-way messaging and ...
Salmasi, Allen
core   +1 more source

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