Results 41 to 50 of about 90,045 (164)
Integrated Analysis of Line-Of-Sight Stability of Off-Axis Three-Mirror Optical System
PhotonicsAs a space camera works in orbit, the stress rebound caused by gravity inevitably results in the deformation of its optomechanical structure, and the relative position change between different optical components will affect the Line-Of-Sight pointing of ...
Yatao Lu +6 more
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Achievable directive antenna gain measurements and modeling for 60 GHz indoor links
Scientific ReportsHighly directive antennas may be a key component in millimeter wave links to offset their inherently high path losses. In cluttered scenarios such as Non-Line-Of-Sight (NLOS) indoor settings, antenna gain is degraded by the interaction of the channel ...
Sebastián Bruna +8 more
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IL-17 in the Rheumatologist’s Line of Sight
BioMed Research International, 2013 Over the past decades, the identification of several new cytokines, including interleukin (IL)-17 and IL-23, and of new T helper cell subsets, including Th17 cells, has changed the vision of immunological processes. The IL-17/Th17 pathway plays a critical role during the development of inflammation and autoimmunity, and targeting this pathway has ...
Marie-Elise Truchetet +2 more
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Machine learning-based intelligent localization technique for channel classification in massive MIMO
Discover Internet of ThingsMultiple-input multiple-output (MIMO) technology has been widely adopted in wireless communications, which enables the simultaneous transmission of multiple data streams via multiple transmitting and receiving antennas.
Fadhil Ghrabat +2 more
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Non-Line-of-Sight Beacon Identification for Sensor Localization
International Journal of Distributed Sensor Networks, 2012 In recent years, sensors are often deployed to sense the target environment. Besides the sensed environmental information, sensor's position information itself is very important in most cases.
Chunfeng Wan, Akira Mita, Songtao Xue
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Nihon Kikai Gakkai ronbunshu, 2016 Line-of-sight such as gaze and eye-contract plays an important role to enhance the embodied interaction and communication through avatars. In addition, many eyeball movement models and communication systems using avatars with the line-of-sight have been ...
Yoshihiro SEJIMA +2 more
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Reliability of line-of-sight radio-relay systems
Journal of Telecommunications and Information Technology, 2006 The modern radio transmission systems are specifically designed for catching principally two main objectives: on one side to provide a radio solution for long distance where large configurations are required to fulfill the high capacity transmissions ...
Jan Bogucki, Ewa Wielowieyska
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Fading Duration in Line-of-sight Radio Links at 6 GHz
Journal of Telecommunications and Information Technology, 2013 Broadband fixed wireless access, local multipoint distribution service networks are promising wireless solutions to connect fixed users to the backbone network instead of wired copper or fiber optic networks, via point-to-multipoint cellular networks ...
Jan Bogucki, Ewa Wielowieyska
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Future InternetIntelligent Reflecting Surfaces (IRSs) enable us to have a reconfigurable reflecting surface that can efficiently deflect the transmitted signal toward the receiver.
Santosh A. Janawade +5 more
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Path Profile Analysis of a LOS System Using 3-D Digital Map
مجلة النهرين للعلوم الهندسية, 2008 Exponential growth of mobile communications, radio links and wireless networks has increased interest in many topics in radio propagation. Much effort is now devoted to refine radio propagation path-loss models for urban, suburban, and other environments
Jabir S. AZIZ, Saba T. HAMADA
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