Results 91 to 100 of about 40,526 (211)
Improvement of Bit Error Rate (BER) in Telemetry Radio Link of Satellite LEO Using MIMO Technique [PDF]
فصلنامه علوم و فناوری فضایی, 2012 After setteling the LEO satellite in the given circuit, the ground station needs to communicate with it for the received of information and control of its subsystems.
Shahrokh Marzban +2 more
doaj
Satellite Based Turbo-Coded, Blind-Equalised 4-QAM and 16-QAM Digital Video Broadcasting
, 2000 The Pan-European Digital Satellite Video Broadcasting (DVB-S) system’s performance is characterized and improved with the aid of turbo coding and multi-level modulation.
Lee, C.S., Vlahoyiannatos, S., Hanzo, L.
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The Satellite Communications Network of Excellence "SatNEx"
, 2009 SatNEx aims to overcome the fragmentation in Europe’s satellite communications research by bringing together Europe’s leading academic institutions and research organisations in a cohesive and durable way.
Lutz, Erich, Donner, Anton
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Subset Optimization of Adaptive Coding and Modulation Schemes for Broadband Satellite Systems
, 2010 The number of Coding and Modulation Schemes suggested for the two standards DVB-S2 and DVB-RCS (in its "advanced" version) is clearly overdimensioned; a subset of schemes can be used by reducing the overall system performance negligibly.
M. Berioli +5 more
core +1 more source
IEEE AccessIn this paper, we study the extension of 5G New Radio (NR) to Non-Terrestrial Networks (NTN). For terrestrial ones, Hybrid Automatic Repeat reQuest (HARQ) is the main retransmission solution used by 5G NR at the physical and MAC layers, enhancing ...
Riccardo Tuninato +3 more
doaj +1 more source
Intercomparison of satellite-based and model-based rainfall analyses
, 2006 Four satellite rain estimations based on microwave (MW), infrared (IR) or combined MW-IR techniques are compared with the BOlogna Limited Area Model (BOLAM) rain forecast for a severe weather event (8–13 November 2001) over the western Mediterranean Sea.
S. Davolio +5 more
core +1 more source
Research on Channel Estimation Algorithm based on LEO Satellite PCMA Signal
Guangtongxin yanjiu【Objective】With the development of the space-ground integrated information network, the Low Earth Orbit (LEO) satellite communication system is ushering in a development boom.
WANG Yuqi +3 more
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Statistical channel modelling and performance evaluation in satellite personal communications
, 1998 This paper is concerned with channel modelling for satellite personal communications and with the associated problem of performance evaluation. Channel characteristics for personal communications tend to differ from those traditionally accepted for ...
Vatalaro, F +3 more
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Statistical channel modelling and performance evaluation in satellite personal communications
, 1997 This paper is concerned with channel modelling for satellite personal communications and with the associated problem of performance evaluation. Channel characteristics for personal communications tend to differ from those traditionally accepted for ...
Vatalaro, F, VATALARO, FRANCESCO
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Engineering ReportsDue to the long transmission distance of the constellation network represented by the low‐orbit satellite system, the satellite‐to‐ground link is subject to large path loss and limited communication performance.
Yuyang Liu, Tong Shi, Hua Wang
doaj +1 more source