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Statistical Study of Satellite Constellations and the Cubesat Role [PDF]
علوم، فناوری و کاربردهای فضایی, 2023 Satellite Constellations are the new approach to achieve the capabilities that were previously expected from large and complex satellites. This paper reviews activities and related satellite constellation of about 130 companies and research institutes in
Ehsan Mousivand +3 more
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Zarządzanie współtworzeniem wartości w mediach – od łańcucha do konstelacji
Problemy Zarządzania, 2013 The new challenge of previously passive recipients becoming actual users indicates the need for a change for media companies at the level of strategic management.
Jan Kreft
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Constellation Optimization in the Presence of Strong Phase Noise
, 2013 In this paper, we address the problem of optimizing signal constellations for strong phase noise. The problem is investigated by considering three optimization formulations, which provide an analytical framework for constellation design.
Amat, Alexandre Graell i +3 more
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Generalized PSK in Space Time Coding [PDF]
, 2004 A wireless communication system using multiple antennas promises reliable transmission under Rayleigh flat fading assumptions. Design criteria and practical schemes have been presented for both coherent and non-coherent communication channels.
Han, Guangyue
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Survey and analyzing astronomical concepts as the shape and decorative images in metal works of the Seljuk period [PDF]
نگره, 2012 Astronomy and astronomical instruments during the Islamic era due to various needs and requirements in Muslims life, such as awareness of time, sunrise and sunset for praying and issues of navigation and geographic matters and astrology phenomenon, and ...
Mohammad Afrogh, Daryosh Noroozitalab
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L'Espace PolitiqueThe technological evolution of satellite telecommunications systems to achieve high-speed Internet access raises geopolitical issues on several levels. The development of these systems is now largely driven by private players, who are gradually gaining ...
Célestine Rabouam
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Blind Carrier Phase Recovery for General 2{\pi}/M-rotationally Symmetric Constellations
, 2012 This paper introduces a novel blind carrier phase recovery estimator for general 2{\Pi}/M-rotationally symmetric constellations. This estimation method is a generalization of the non-data-aided (NDA) nonlinear Phase Metric Method (PMM) estimator already ...
Bouallègue, Ammar +2 more
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Three-transmit-antenna space-time codes based on SU(3) [PDF]
, 2005 Fully diverse constellations, i.e., a set of unitary matrices whose pairwise differences are nonsingular, are useful in multiantenna communications especially in multiantenna differential modulation, since they have good pairwise error properties ...
Hassibi, Babak, Jing, Yindi
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, 2023 Constellations is a researched book-length lyric essay concerning notions of faith and belief weighed against science and the bodily experience, of layers of meaning, of personal truth. The piece takes the form of "constellations" of text in place of stars. The text appears on 4x6" cards against a black background with speckled white to indicate "space"
Todd, Michael, author +3 more
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Considering Structural Properties of Inter-organizational Network Fragments during Business-IT Alignment [PDF]
, 2008 Value exchange models can be used to reason about possible networked business constellations. Such inter-organizational business settings are determined in most cases solely from a financial point of view, i.e. by assessing the economic sustainability of
Zarvić, N.
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