Letteratura scientifica selezionata sul tema "Multi-Dimensional modulations"
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Articoli di riviste sul tema "Multi-Dimensional modulations":
Mjølhus, E., e T. Hada. "Oblique stability of circularly polarized MHD waves". Journal of Plasma Physics 43, n. 2 (aprile 1990): 257–68. http://dx.doi.org/10.1017/s002237780001477x.
Lidin, Sven, Partha Jana, Carola Müller, Shuying Piao e Simeon Ponou. "News from the world of modulated intermetallics". Acta Crystallographica Section A Foundations and Advances 70, a1 (5 agosto 2014): C167. http://dx.doi.org/10.1107/s2053273314098325.
M. Navazi, Hassan, e Md Jahangir Hossain. "Novel Method for Multi-Dimensional Mapping of Higher Order Modulations for BICM-ID Over Rayleigh Fading Channels". IEEE Transactions on Wireless Communications 18, n. 2 (febbraio 2019): 1142–54. http://dx.doi.org/10.1109/twc.2018.2890061.
Lu, Yi, Biao Tang, Guisong Yang, Yuanyuan Guo, Linwei Liu e Alex Henzen. "Progress in Advanced Properties of Electrowetting Displays". Micromachines 12, n. 2 (18 febbraio 2021): 206. http://dx.doi.org/10.3390/mi12020206.
Schoenberg, Poppy L. A., e Anne E. M. Speckens. "Multi-dimensional modulations of α and γ cortical dynamics following mindfulness-based cognitive therapy in Major Depressive Disorder". Cognitive Neurodynamics 9, n. 1 (29 agosto 2014): 13–29. http://dx.doi.org/10.1007/s11571-014-9308-y.
Pier, Benoît, e Peter J. Schmid. "Linear and nonlinear dynamics of pulsatile channel flow". Journal of Fluid Mechanics 815 (21 febbraio 2017): 435–80. http://dx.doi.org/10.1017/jfm.2017.58.
Chen Yanjie, 陈彦杰, 徐正琨 Xu Zhengkun, 赵睿哲 Zhao Ruizhe, 李晓炜 Li Xiaowei, 王涌天 Wang Yongtian e 黄玲玲 Huang Lingling. "多维度大容量超表面全息及光场变换". Acta Optica Sinica 44, n. 2 (2024): 0200005. http://dx.doi.org/10.3788/aos231100.
Pegna, Alan J., Alexandra Darque, Mark V. Roberts e E. Charles Leek. "Effects of stereoscopic disparity on early ERP components during classification of three-dimensional objects". Quarterly Journal of Experimental Psychology 71, n. 6 (1 gennaio 2018): 1419–30. http://dx.doi.org/10.1080/17470218.2017.1333129.
Zhu Chen, 朱宸, 邵正龙 Shao Zhenglong, 周英杰 Zhou Yingjie, 任佳琪 Ren Jiaqi, 樊帆 Fan Fan e 汤东亮 Tang Dongliang. "液晶的多维度光场调控技术研究进展". Chinese Journal of Lasers 50, n. 18 (2023): 1813006. http://dx.doi.org/10.3788/cjl230716.
Fusaro, A., P. Loiseau, D. Penninckx, G. Riazuelo e R. Collin. "Improving stimulated Brillouin scattering mitigation in weakly-damped plasmas: from spectral dispersion to spectral distribution". Nuclear Fusion 61, n. 12 (15 novembre 2021): 126049. http://dx.doi.org/10.1088/1741-4326/ac31d9.
Tesi sul tema "Multi-Dimensional modulations":
Liu, Jingtian. "Shaping Strategies to Embrace Nonlinear Effects in Optical Fiber Communications". Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAT007.
The main impediment in long-distance communications is nonlinear interference (NLI), stemming from nonlinear effects in optical fibers. While Digital signal processing algorithms offer partial mitigation, the inherent nonlinear nature of the fiber, coupled with predominant dispersion effects, continues to challenge the increase of transmission throughputs. Addressing nonlinearity at the information source through signal modulation technology is at the heart of our research. Traditional modulation schemes, as spectral efficiency climbs, such as QAM, become increasingly susceptible to NLI while their Mean Squared Euclidean Distance (MSED) diminishes. While multi-dimensional (MD) modulation yields improved linear and partial nonlinear gains, it has not yet demonstrated tangible benefits. On the other hand, the emergence of probabilistic constellation shaping (PCS), preferred for its enhanced linear gain and compatibility with conventional modulation hardware and software, introduces additional NLI. Consequently, the design of nonlinear-tolerant PCS is emerging as a pivotal research direction. Our thesis begins with a novel MD modulation for uniformly distributed signals. Then, we propose a novel approach combining MD with PCS to examine performance variations. Delving into PCS, we investigate the enumerative sphere shaping distribution matcher (DM), initially from an MD stance, and design a DM optimized for nonlinear tolerance over shorter distances. Subsequently, we introduce a new NLI measurement technique, accounting for dispersion effects. Integrating this with the sequence selection framework of PCS, we achieve successful long-distance transmission with notable nonlinear gains
LEVCOVITZ, RUBEN. "SIMULATION TRELLIS CODES WITH MULTI-DIMENSIONAL MODULATION FOR THE TELEPHONE CHANNEL". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1989. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9264@1.
O presente trabalho analisa, através de simulação, o desempenho de códigos em treliça em canais telefônicos. Os esquemas simulados correspondem a modulação com constelação multi-dimensionais codificadas, otimizadas de forma integrada utilizando a regra de mapeamento por particionamento de conjuntos. Uma técnica iterativa, eficiente, para obtenção de estrutura do codificador/modulador proposta por Wei [13], é examinada. O desempenho de um código com constelação bidimensional recomendado pelo CCITT é comparado com o desempenho de um código quadridimensional obtido com o método de Wei.
A computer simulation analysis of the performance of trellis codes on telephone channel is done in this thesis. The simulated schemmes use coded modulations with multi- dimensional signal sets jointly optimized under the rule of mapping by set partitioning. An efficient iterative technique to obtain the structure of the encoder/modulator proposed by Wei [13] is examined. The performance of the CCITT recommended code with bidimensional constelation is compared to the performance of a four-dimensional code obtained with the Wei method.
Kassouf, Marthe. "Capacity and information rates for multiple antenna wireless systems with multi-dimensional modulation". Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97781.
Les systemes a entree multiple et sortie multiple permettent d’augmenter le debit de transmission de donnees dans les reseaux de communication sans fil. Ces systemes sont caracterises par une grande flexibilite de conception, ce qui leur permet d’accommoder une grande variete de techniques de signalisation et d’attribution de ressources. Dans cette these, nous considerons la capacite et les debits de transmission possibles pour les systemes a entree multiple et sortie multiple utilisant une variete de formats de modulation espacetemps multidimensionnelle. Ces formats correspondent a differentes manieres d’ attribuer les dimensions orthogonales du signal aux antennes de transmission. Pour un systeme ayant un seul usager et moyennant une puissance de transmission fixe, nous examinons comment attribuer la puissance et les dimensions du signal aux antennes de transmission, de maniere a maximiser les debits de transmission en tenant compte de 1’information sur l’etat du canal dont dispose le transmetteur. Dans plusieurs situations, nous demontrons qu’utiliser toutes les dimensions du signal sur chaque antenne de transmission permet d’atteindre de plus hauts debits de transmission. [...]
Prueter, Phillip Edward. "A Study of the Mechanical Design and Gear Tooth Root Strains in Flexible Pin, Multi-Stage, Planetary Wind Turbine Gear Trains Using Three Dimensional Finite Element/Contact Mechanics Models and Experiments". The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313372765.
Joshi, Rimesh M. "Analog and Digital Array Processor Realization of a 2D IIR Beam Filter for Wireless Applications". University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1326776749.
Tang, Chi-Him, e 鄧智謙. "Permanent Magnet Synchronous Motor Control using Multi-Dimensional Feedback Quantization Modulation". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/19926510436629867429.
國立交通大學
電控工程研究所
98
This thesis proposes a novel control method for three phase permanent magnet synchronous motor using multi-dimensional feedback quantization modulation (MDFQM). Unlike the conventional space vector pulse width modulation (SVPWM) which achieves three phase input voltage by a combination of the basic space vectors, the proposed scheme computes optimal switching commands to minimize the filtered measure of quantization error under the constrained switching vector space. Further, the filtered quantization error feedback produces the effect of noise shaping. The computation effort of this method can be reduced via a 2-D projection. Therefore, an implementation on a 16-bit microcontroller is demonstrated in this thesis. Comparisons with SVPWM on steady-state speed ripple, switching number and the surface temperature of MOSFETs are conducted. The results show that MDFQM reduces the switching number and the heat dissipation of MOSFETs without increasing the speed ripple. This will enhance the control efficiency and increase the reliability and life of the power stage circuit.
Chen, Wei-Yu, e 陳威諭. "Application of multi-dimensional feedback quantized modulation to three-phase current control". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/87398179873538689910.
國立交通大學
電控工程研究所
99
This paper has implemented three-phase current control in a FPGA-based system. First, we dicuss the mathematical derivation and concept of operation. Then we uses conclusion of the mathematical derivation to design the current control of PMSM. The controller adjusts the output current of inverter to achieve the current command in order to make a comparison of three different current control method. The core of three-phase current control is based on the concept of multi-dimensional feedback quantized modulator (MDFQM). The major part of this paper is MDFQCC and compares with SPWM and MDFQM in the reference. This paper verifies the difference between SPWM, MDFQM and MDFQCC by simulation and experiment.
Vlok, Jacobus David. "Sparse graph codes on a multi-dimensional WCDMA platform". Diss., 2007. http://upetd.up.ac.za/thesis/available/etd-07042007-155428.
Yao, Cheng-Chiang, e 姚政江. "Application of Multi-Dimensional Feedback Quantized Modulation to Current Control of Six-Switch-Inverter Fed Two Cascaded Electrodynamic Shakers". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/72626584225497380142.
國立交通大學
電控工程研究所
102
In this thesis, two cascaded electrodynamic shakers are fed to a six-switch-inverter. To enlarge the region of the output voltages, the high-efficiency multi-dimensional feedback quantized modulation is used. The results of the conventional pulse-width modulation (PWM) are also provided for comparison. All the controls are implemented in FPGA to verify the proposed method. Finally, we verify the difference between PI-PWM and PI-MDFQM by simulation and experiment.
Jarvis, Thomas William. "Novel tools for ultrafast spectroscopy". Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-12-4456.
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Libri sul tema "Multi-Dimensional modulations":
Shu, Lin. Multi-dimensional modulation codes for fading channel. [Washington, DC: National Aeronautics and Space Administration, 1991.
Shu, Lin. Multi-dimensional modulation codes for fading channel. [Washington, DC: National Aeronautics and Space Administration, 1991.
National Aeronautics and Space Administration (NASA) Staff. Multi-Dimensional Modulation Codes for Fading Channel. Independently Published, 2018.
Capitoli di libri sul tema "Multi-Dimensional modulations":
Che, Di, An Li, Xi Chen, Qian Hu e William Shieh. "Multi-dimensional Polarization Modulation". In Datacenter Connectivity Technologies, 585–619. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003337829-14.
Gao, Jingpeng, Yi Lu, Lu Gao e Liangxi Shen. "Multi-dimensional Feature Fusion Modulation Classification System Based on Self-training Network". In Lecture Notes in Computer Science, 619–29. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34110-7_52.
Aitsab, O., R. Pyndiah e B. Solaiman. "Joint optimization of multi-dimensional SOFM codebooks with QAM modulations for vector quantized image transmission". In Proceedings IWISP '96, 3–6. Elsevier, 1996. http://dx.doi.org/10.1016/b978-044482587-2/50003-3.
Li, Zhipei, Dong Guo e Ran Gao. "Coded Modulation and Impairment Compensation Techniques in Optical Fiber Communication". In Fiber Optics [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98811.
Lee, Hyunglae. "Task-dependent modulation of multi-dimensional human ankle stiffness". In Powered Prostheses, 41–56. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-817450-0.00003-1.
Feng, Lixiao, Junjie Bai, Chengyuan Chen, Jun Peng e Guorong Chen. "Implanted Cardiac Pacemaker Mathematical Modeling and Research Based on the Volume Conduction". In Biotechnology, 923–39. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8903-7.ch036.
Wang, Y., Z. Feng, KL Cheng, J. Zhang, L. Xu, TP Lam, ALH Hung, JCY Cheng, Y. Qiu e WYW Lee. "Role of differentially expressed LBX1 in Adolescent Idiopathic Scoliosis (AIS) paraspinal muscle phenotypes and muscle-bone crosstalk through modulating myoblasts". In Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210425.
Atti di convegni sul tema "Multi-Dimensional modulations":
Fang, Juing, Alain Karas e Xiao-Young Guo. "Performances of multi-dimensional trellis coded phase modulations over nonlinear satellite channel". In 15th International Communicatons Satellite Systems Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-1147.
Rosenkranz, Jan-Andre, e Thomas Sattelmayer. "Experimental Investigation of High Frequency Flame Response on Injector Coupling in a Perfectly Premixed Multi-Jet Combustor". In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-101417.
Wong, Tze C., e Hyuck M. Kwon. "Multi-dimensional modulation for multi-path fading channels: Performance analysis". In MILCOM 2010 - 2010 IEEE Military Communications Conference. IEEE, 2010. http://dx.doi.org/10.1109/milcom.2010.5680235.
Eiselt, Michael H., Annika Dochhan e Helmut Griesser. "Multi-Dimensional Modulation Formats for Adaptive Optical Transmission". In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/acp.2013.af1f.1.
Eiselt, Michael, Annika Dochhan e Helmut Griesser. "Multi-Dimensional Modulation Formats for Adaptive Optical Transmission". In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/acpc.2013.af1f.1.
Ling, Wei, Bin Chen e Yi Lei. "Orthant-Symmetric Multi-dimensional Geometrically-Shaped Modulation Optimization". In 2021 19th International Conference on Optical Communications and Networks (ICOCN). IEEE, 2021. http://dx.doi.org/10.1109/icocn53177.2021.9563720.
Duran, Mario J., e Emil Levi. "Multi-Dimensional Approach to Multi-Phase Space Vector Pulse Width Modulation". In IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics. IEEE, 2006. http://dx.doi.org/10.1109/iecon.2006.347436.
Wong, Tze C., Hyuck M. Kwon e Amitav Mukherjee. "Hybrid Multi-Dimensional Modulation for Gaussian and Fading Channels". In 2010 IEEE Vehicular Technology Conference (VTC 2010-Fall). IEEE, 2010. http://dx.doi.org/10.1109/vetecf.2010.5594209.
Bendimerad, Djalal F., Huijian Zhang, Ingmar Land e Hartmut Hafermann. "Partially Ordered Statistics Demapping for Multi-Dimensional Modulation Formats". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/ofc.2019.w3h.5.
Zhao, Xiaodi, Xuanhan Zhou, Jun Xiong, Fang Li e Ling Wang. "Automatic Modulation Recognition Based on Multi-Dimensional Feature Extraction". In 2020 International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 2020. http://dx.doi.org/10.1109/wcsp49889.2020.9299797.