Zobrazeno 1 - 10
of 470
pro vyhledávání: '"Amplificateur"'
Autor:
Lajovic Carneiro, Marcos
Les signaux des nouveaux standard de communications (LTE) ont une grande différence entre la puissance maximale et moyenne (PAPR), cela n'est pas favorable pour l'utilisation dans les amplificateurs conventionnels vu qu'ils présentent un rendement
Externí odkaz:
http://www.theses.fr/2013BOR15024/document
Autor:
Capelli, Thomas
Mobile telecommunications, in order to support its insatiable needs, has been finding ways to improve its capabilities for over thirty years now. In 2019 the fifth generation (5G) is on trial to ensure connection not only to the ever-growing cell pho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::207430199bd0989ea4bcaf9edf362290
https://theses.hal.science/tel-03783466
https://theses.hal.science/tel-03783466
Autor:
Saabe, Wissam
This thesis work concern the study of behavioral modeling potential of a traveling wave tube amplifier used in satellite communication systems. This study inherits an important base of developments carried out over the last twenty years at the XLIM l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::b5fbbfbcf3d9ffbe93e74be9224b2ec2
https://theses.hal.science/tel-03666782
https://theses.hal.science/tel-03666782
Outils de conception pour l'amplification distribuée ultra large bande aux fréquences millimétriques
Autor:
El Chaar, Mohamad
Over the last few years, both data center and network traffic increased by several folds (more than six-folds, as stated by CISCO Systems, Inc.) and are still experiencing an ongoing growth. This demand for higher capacity while meeting with higher e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::2415565d1f8830d678bed3071e21983f
https://theses.hal.science/tel-03936695
https://theses.hal.science/tel-03936695
Autor:
Oliver Munroe
Publikováno v:
HAL
The aim of this thesis is to provide simplified hardware and software solutions to the problem of real time loudspeaker linearisation. Most of the existing methods require the use of external sensors, use complex nonlinear models, or attempt to optim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::193234335c2799b16780ea9cc2aed5e0
https://theses.hal.science/tel-03937151
https://theses.hal.science/tel-03937151
Autor:
Coquillas, Benjamin
The improvement of the RADAR systems of the current aircraft is confronted with the two major challenges of the reduction of the areas occupied and the control of the cost. These challenges are added to the specific material constraints of self-guide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::c14ccf551b5ba0ce0a4f965e84aaca09
https://theses.hal.science/tel-03783473
https://theses.hal.science/tel-03783473
Autor:
Dimitrios Kastritsis
Photonic sampling is a process employed in various state-of-the-art systems, since it permits a unique combinaison of advantages such as the low temporal jitter, the low-loss, high bandwidth and immunity to electromagnetic interference (EMI). This th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc8773904dbc374dff23f4bc24b1b9fd
https://theses.hal.science/tel-03789911
https://theses.hal.science/tel-03789911
Autor:
Joao, Kelson Henrique
The 5G mobile telecommunications systems are structured around antenna architectures called massive MIMO (Multiple Input Multiple Output), which allows to connect several users simultaneously with a better connection quality and an optimization of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::af75eb75fee5d009d1eb43814484616b
https://theses.hal.science/tel-03945881
https://theses.hal.science/tel-03945881
Autor:
Portelance, Morgane
Publikováno v:
Electronique. Université de Limoges, 2021. Français. ⟨NNT : 2021LIMO0075⟩
The current radio navigation applications, like the Galileo satellite constellation, have a different approach in the design of power amplifiers. Contrary to applications for telecommunication satellites, the criterion is no longer the frequency rise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::058ed65404d10b427cae3a391a0b97c8
https://tel.archives-ouvertes.fr/tel-03431247/document
https://tel.archives-ouvertes.fr/tel-03431247/document