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Propagation Measurement on Earth-Sky Signal Effects for High Speed Train Satellite Channel in Tropical Region at Ku-Band

Abdulmajeed H. J. Al-Jumaily, A. Sali, J. S. Mandeep, Alyani Ismail
2015 International Journal of Antennas and Propagation  
The underlying analytical tool is validated by measurements specific at tropical region, for dynamic model of mobile satellite links operating at higher than 10 GHz.  ...  Recent advances in satellite communication technologies in the tropical regions have led to significant increase in the demand for services and applications that require high channel quality for mobile  ...  Design of fade mitigation techniques to overcome this problem requires indepth knowledge of the channel mobility properties to be achieved through development of channel models.  ... 
doi:10.1155/2015/270949 fatcat:s5porlfzarc6hgozcn5gdhuuoa

2013 Index IEEE Antennas and Wireless Propagation Letters Vol. 12

2013 IEEE Antennas and Wireless Propagation Letters  
The primary entry includes the coauthors' names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and inclusive pagination.  ...  Departments and other items may also be covered if they have been judged to have archival value. The Author Index contains the primary entry for each item, listed under the first author's name.  ...  ., +, LAWP 2013 579-582 Statistical characterization and modeling of Doppler spectrum in dynamic on-body channels.  ... 
doi:10.1109/lawp.2014.2302398 fatcat:2jsjqnjwk5ahzlytqfhke54noi

D2.2 HELMET CONOPS

Filip, Aleš; Holík, Filip; Neri, Alessandro; Salvitti, Maurizio; Xefteris, Panagiotis; Dionisio, Cesare; Salavatori, Pietro; Capua, Roberto; Gattuso, Luca; Innoccente, Manuele; Crespillo, Omar Garcia; Kutik, Ondrej; Loupis, Michael
2020 Zenodo  
This is part of H2020 HELMET Project  ...  At the ITU-R 2015 WRC (WRC-15), BRLOS spectrum requirements were addressed by providing allocations specifically for UAS/RPAS in Ku-Band and Ka-Band in Fixed Satellite Service (FSS) allocations Revised  ...  Composite fail-safety allows a safety-related function to be performed by at least two independent channels.  ... 
doi:10.5281/zenodo.4560415 fatcat:6xp7mmxl5jen5g36kr2f6cxd3y

Development of Space Weather Reasonable Worst Case Scenarios for the UK National Risk Assessment

Mike Hapgood, Matthew J. Angling, Gemma Attrill, Mario Bisi, Paul S. Cannon, Clive Dyer, Jonathan P. Eastwood, Sean Elvidge, Mark Gibbs, Richard A. Harrison, Colin Hord, Richard B. Horne (+13 others)
2021 Space Weather: The international journal of research and applications  
To support further risk assessment by government officials, and at their request, we developed a set of reasonable worst-case scenarios and first published them as a technical report in 2012 (current version  ...  Each scenario focused on a space weather environment that could disrupt a particular national infrastructure such as electric power or satellites, thus, enabling officials to explore the resilience of  ...  Acknowledgments The authors of this paper are members (past and present) of the Space Environ-  ... 
doi:10.1029/2020sw002593 fatcat:wplmuiskabgtdbvmhoqq44xtca

Analysis of distributed coupling along nonparallel traces using PEEC with phase term expansions

Michael A. Cracraft, James L. Drewniak
2008 2008 IEEE International Symposium on Electromagnetic Compatibility  
This paper will look at a couple of proposed techniques specifically for the chip level.  ...  a possible referencing (grounding) techniques in LTCC boards for satellite applications is presented.  ...  Ground vias mitigate the indirect crosstalk by from 37 dB at 800 MHz to 15 dB at 1200 MHz, and the proposed slots and ground vias on ground fillings suppress the indirect crosstalk by from 57 dB at 800  ... 
doi:10.1109/isemc.2008.4652106 fatcat:hua5e7gzlvhq5ng6hrt46h4t2q

Conference Programme

2021 2020 17th European Radar Conference (EuRAD)  
The GAAS® Association sponsors three student fellowships of €2,000 each, to be given to young full-time Ph.D. students each having an accepted paper at EuMIC 2020.  ...  The purpose is to recognise and provide financial assistance to international Ph.D. students who show promise and interest in pursuing a graduate degree in microwave electronics.  ...  , mass and cost for satellite applications.  ... 
doi:10.1109/eurad48048.2021.9337387 fatcat:bljkno3izzac3kqwrgz3e7t5re

Performance of optimized sound field control techniques in simulated and real acoustic environments

Philip Coleman, Martin Møller, Martin Olsen, Marek Olik, Philip Jackson, Jan Abildgaard Pedersen
2012 Journal of the Acoustical Society of America  
unwanted noise. 3417 Armstrong participated as a member of a joint research group including the Center for Health Design and Palomar Pomerado Health in San Diego, California.  ...  The results of this study show how changes being made in the design and operation of contemporary NICU's are reflected in the measured sound levels, and what future changes can be made to further decrease  ...  After checking the channel status, this system selects a mitigation technique depending on the type of multipath fading.  ... 
doi:10.1121/1.4709059 fatcat:5yv7djzdifgwvlzymric4u65oa

New ISO standards for hearing protectors

Torben Poulsen
2000 Journal of the Acoustical Society of America  
To the concert-going public? To the art of acoustical design? Finally, what does the continuing evolution of these techniques hold for the future of architectural acoustic design?  ...  Comparisons between predicted and simulated equalization performance for realistic channel models are presented. 11:15 4aUW12. Guidelines for underwater acoustic data telemetry system design.  ...  This paper will focus on its recent developments for vibration analysis and for nondestructive testing ͑NDT͒ by dynamic ͑harmonic͒ excitation.  ... 
doi:10.1121/1.4743748 fatcat:tzupe2dywvdlba4cl35xczgrqq

Ray tracing in a turbulent, shallow‐water channel

Christian Bjerrum‐Niese, René Lützen, Leif Bjo/rno/
1998 Journal of the Acoustical Society of America  
Four were bottomed onslope or at basin depth; two were suspended, one at the sound channel axis and one 30 m above the deep bottom.  ...  This model-free technique is designed to maximize the signal-to-noise ratio of known signals irrespective of the nature of the waveguide.  ...  Essentially the composite correlation is obtained by sampling the product of the scatterer and channel TFCF's.  ... 
doi:10.1121/1.422455 fatcat:vqypn7trzberzap3bkznkoddcu

Scattering by two spheres: Theory and experiment

Irina Bjo/rno/, Leif Bjo/rno/
1998 Journal of the Acoustical Society of America  
Four were bottomed onslope or at basin depth; two were suspended, one at the sound channel axis and one 30 m above the deep bottom.  ...  This model-free technique is designed to maximize the signal-to-noise ratio of known signals irrespective of the nature of the waveguide.  ...  Essentially the composite correlation is obtained by sampling the product of the scatterer and channel TFCF's.  ... 
doi:10.1121/1.421626 fatcat:qf2u35fztjfgtgredwhbg53zwm

A virtual auditory environment for investigating the auditory signal processing of realistic sounds

Sylvain Favrot, Jörg M. Buchholz
2008 Journal of the Acoustical Society of America  
This work examines existing statistical time-frequency models and techniques for RTF analysis ͑e.g., Schroeder's stochastic model and the standard deviation over frequency bands for the RTF magnitude and  ...  The pass and stop band domains for ͓0"45"90"-45͔ cross ply composites have been plotted.  ...  The formation of synthetic apertures combined with model based extended Kalman filter techniques was found to demonstrate both narrow band and broadband tracking.  ... 
doi:10.1121/1.2936003 fatcat:ontu6yamdvgbnooet5fe36fm74

Analysis of room transfer function and reverberant signal statistics

Eleftheria Georganti, John Mourjopoulos, Finn Jacobsen
2008 Journal of the Acoustical Society of America  
This work examines existing statistical time-frequency models and techniques for RTF analysis ͑e.g., Schroeder's stochastic model and the standard deviation over frequency bands for the RTF magnitude and  ...  The pass and stop band domains for ͓0"45"90"-45͔ cross ply composites have been plotted.  ...  The formation of synthetic apertures combined with model based extended Kalman filter techniques was found to demonstrate both narrow band and broadband tracking.  ... 
doi:10.1121/1.2935346 fatcat:lxgnqr6tozajhge3ydet3xomam

Cross‐spectral synergy and consonant identification

Thomas Ulrich Christiansen, Steven Greenberg
2008 Journal of the Acoustical Society of America  
A more deterministic approach could consider a series of models with increasing geometric detail, each to be analyzed at a corresponding frequency band for which the requirement of large surface dimensions  ...  The model was also extended to include the out-of-phase secondary sound source of a single-channel, global active-noise-control ͑ANC͒ system.  ...  This work examines existing statistical time-frequency models and techniques for RTF analysis ͑e.g., Schroeder's stochastic model and the standard deviation over frequency bands for the RTF magnitude and  ... 
doi:10.1121/1.2935680 fatcat:znwocm35unasharfwbcap5omim

The perceptual flow of phonetic feature processing

Steven Greenberg, Thomas Ulrich Christiansen
2008 Journal of the Acoustical Society of America  
A more deterministic approach could consider a series of models with increasing geometric detail, each to be analyzed at a corresponding frequency band for which the requirement of large surface dimensions  ...  The model was also extended to include the out-of-phase secondary sound source of a single-channel, global active-noise-control ͑ANC͒ system.  ...  This work examines existing statistical time-frequency models and techniques for RTF analysis ͑e.g., Schroeder's stochastic model and the standard deviation over frequency bands for the RTF magnitude and  ... 
doi:10.1121/1.2935993 fatcat:l2ix2ph575gh7l27xtjq264qkm

Amplitude modulation depth discrimination in hearing‐impaired and normal‐hearing listeners

Stephan D. Ewert, Jutta Volmer, Torsten Dau, Jesko Verhey
2008 Journal of the Acoustical Society of America  
A more deterministic approach could consider a series of models with increasing geometric detail, each to be analyzed at a corresponding frequency band for which the requirement of large surface dimensions  ...  The model was also extended to include the out-of-phase secondary sound source of a single-channel, global active-noise-control ͑ANC͒ system.  ...  This work examines existing statistical time-frequency models and techniques for RTF analysis ͑e.g., Schroeder's stochastic model and the standard deviation over frequency bands for the RTF magnitude and  ... 
doi:10.1121/1.2935715 fatcat:qsqohnv63fdsjgegqb2h5s7r7q
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