Relevant bibliographies by topics / Multi-beam propagation

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Multi-beam propagation'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Multi-beam propagation"

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Yaln Ata, Yalcin Ata, and Yahya Baykal Yahya Baykal. "Anisotropy effect on multi-Gaussian beam propagation in turbulent ocean." Chinese Optics Letters 16, no. 8 (2018): 080102. http://dx.doi.org/10.3788/col201816.080102.

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Ma, Xiaolu, Dajun Liu, Yaochuan Wang, Hongming Yin, Haiyang Zhong, and Guiqiu Wang. "Propagation of Rectangular Multi-Gaussian Schell-Model Array Beams through Free Space and Non-Kolmogorov Turbulence." Applied Sciences 10, no. 2 (2020): 450. http://dx.doi.org/10.3390/app10020450.

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In this paper, rectangular multi-Gaussian Schell-model (MGSM) array beams, which consists N×D beams in rectangular symmetry, are first introduced. The analytical expressions of MGSM array beams propagating through free space and non-Kolmogorov turbulence are derived. The propagation properties, such as normalized average intensity and effective beam sizes of MGSM array beams are investigated and analyzed. It is found that the propagation properties of MGSM array beams depend on the parameters of the MGSM source and turbulence. It can also be seen that the beam size of Gaussian beams translated
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Ma, Ming, Xi Luan, Bin Li, and Jian Jun Wu. "Propagation Delay Characteristics Analysis in LEO Satellite Multi-Beam Antenna Coverage." Advanced Materials Research 791-793 (September 2013): 1931–35. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.1931.

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In this paper a calculation model of propagation delays of satellite beams is introduced for LEO multi-beam satellite communications system. Based on actual parameters and beam coverage patterns of the Iridium and Globalstar system, the maximum propagation delay differentials in several typical beams from the center to the edge of the satellites coverage are calculated. Analysis of these results can provide reference for analyzing the feasibility of LEO multi-beam satellite system compatible with uplink synchronization in LTE.
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Huang, Kai, Yonggen Xu, and Yuqiang Li. "Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence." Photonics 10, no. 11 (2023): 1189. http://dx.doi.org/10.3390/photonics10111189.

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We investigate the evolution properties of a partially coherent Laguerre–Gaussian vector vortex (LGVV) beam through inhomogeneous atmospheric turbulence. Analytical formulae for the elements of a cross-spectral density matrix of a partially coherent LGVV beam propagating in turbulence are derived with the help of the extended Huygens–Fresnel principle. Our outcomes demonstrate that the normalized initial profile of a partially coherent beam with concentric dark rings gradually evolves into a Gaussian-like beam profile in turbulence. We also find that the beam is emitted at a large zenith angle
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Piatrou, P. K., and N. A. Khilo. "Bessel beam parameter optimization with adjustable aberrator." Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 60, no. 4 (2025): 327–34. https://doi.org/10.29235/1561-2430-2024-60-4-327-334.

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Transformation of ordinary laser beams of Gaussian type into the ones of Bessel type gives a number of advantages. In particular, it may improve a multi-mode beam energy distribution in the far zone and keep it stable over a long range of propagation distances. A usual method of the Bessel beam formation is based on the use of one or a pair of axicons, at that the latter is used for creating annular beams with small conic angles optimized for long range propagation. The disadvantage of axicons is their fixed geometry not allowing the beam parameter adjustment. An additional Bessel beam improve
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Huang, Kelin, Xun Wang, and Zhirong Liu. "Nonparaxial propagation of a multi-Gaussian Schell-model beam." Journal of Optics 17, no. 8 (2015): 085603. http://dx.doi.org/10.1088/2040-8978/17/8/085603.

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Huang, Kelin, Xun Wang, and Zhirong Liu. "Nonparaxial propagation of a rectangular multi-Gaussian Schell-model beam." Optics Communications 356 (December 2015): 25–33. http://dx.doi.org/10.1016/j.optcom.2015.07.037.

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Yuan, Gang. "X-ray laser beam propagation in multi-pulse pumping plasmas." Physics Letters A 212, no. 5 (1996): 258–62. http://dx.doi.org/10.1016/0375-9601(96)00057-6.

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RUSSELL, TIMOTHY H., SHAWN M. WILLIS, MATTHEW B. CROOKSTON, and WON B. ROH. "STIMULATED RAMAN SCATTERING IN MULTI-MODE FIBERS AND ITS APPLICATION TO BEAM CLEANUP AND COMBINING." Journal of Nonlinear Optical Physics & Materials 11, no. 03 (2002): 303–16. http://dx.doi.org/10.1142/s0218863502001036.

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Laser beam cleanup properties of stimulated Raman scattering (SRS) in a multi-mode fiber have been characterized. It is shown that a fiber, which supports propagation of a highly aberrated pump beam, can generate a Gaussian-like Stokes beam consisting of one or more orders of Stokes components. The beam cleanup properties are found to be similar to those of stimulated Brillouin scattering, which are briefly reviewed herein. The dramatic enhancement in beam quality achievable through SRS clearly demonstrates the potential utility of fiber-based Raman beam cleanup/combining devices for laser bri
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Wang, Lifeng, Wanlin Guo, and Haiyan Hu. "Group velocity of wave propagation in carbon nanotubes." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 464, no. 2094 (2008): 1423–38. http://dx.doi.org/10.1098/rspa.2007.0349.

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The group velocities of longitudinal and flexural wave propagations in single- and multi-walled carbon nanotubes are studied in the frame of continuum mechanics. The dispersion relations between the group velocity and the wavenumber for flexural and longitudinal waves, described by a beam model and a cylindrical shell model, are established for both single- and multi-walled carbon nanotubes. The effect of microstructures in carbon nanotubes on the wave dispersion is revealed through the non-local elastic models of a beam and a cylindrical shell, including the second-order gradient of strain an
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Dissertations / Theses on the topic "Multi-beam propagation"

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Reierson, Joseph L. "Analysis of Atmospheric Turbulence Effects on Laser Beam Propagation Using Multi-Wavelength Laser Beacons." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1324053129.

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Moloney, Jerome V., Kolja Schuh, Paris Panagiotopoulos, M. Kolesik, and S. W. Koch. "Long range robust multi-terawatt MWIR and LWIR atmospheric light bullets." SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/626498.

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There is a strong push worldwide to develop multi-Joule femtosecond duration laser pulses at wavelengths around 3.5-4 and 9-11 mu m within important atmospheric transmission windows. We have shown that pulses with a 4 mu m central wavelength are capable of delivering multi-TW powers at km range. This is in stark contrast to pulses at near-IR wavelengths which break up into hundreds of filaments with each carrying around 5 GW of power per filament over meter distances. We will show that nonlinear envelope propagators fail to capture the true physics. Instead a new optical carrier shock singular
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Ghannoum, Ihssan. "Etudes d'outils de calcul de propagation radar en milieu complexe (milieu urbain, présence de multi-trajets) par des techniques de lancer de faisceaux Gaussiens." Phd thesis, Institut National des Télécommunications, 2010. http://tel.archives-ouvertes.fr/tel-00586362.

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L'objectif de ce travail de thèse est d'enrichir la formulation du Lancer de Faisceaux Gaussiens (LFG) et de tester sa capacité à répondre à certains des besoins actuels en calculs de propagation dans le domaine du Radar terrestre. Le LFG est envisagé comme une alternative possible aux méthodes classiques (Equation Parabolique, méthodes de rayons) en environnement complexe urbanisé, en particulier en présence d'obstacles latéraux, avec une cible située en non visibilité. La méthode de LFG "de base", qui utilise des expressions analytiques obtenues par approximation paraxiale, permet des calcul
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Ghannoum, Ihssan. "Etudes d'outils de calcul de propagation radar en milieu complexe (milieu urbain, présence de multi-trajets) par des techniques de lancer de faisceaux Gaussiens." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2010. http://www.theses.fr/2010TELE0018.

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L’objectif de ce travail de thèse est d’enrichir la formulation du Lancer de Faisceaux Gaussiens (LFG) et de tester sa capacité à répondre à certains des besoins actuels en calculs de propagation dans le domaine du Radar terrestre. Le LFG est envisagé comme une alternative possible aux méthodes classiques (Equation Parabolique, méthodes de rayons) en environnement complexe urbanisé, en particulier en présence d’obstacles latéraux, avec une cible située en non visibilité. La méthode de LFG "de base", qui utilise des expressions analytiques obtenues par approximation paraxiale, permet des calcul
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Шестопал, Євген Олександрович, Евгений Александрович Шестопал та Yevgen Shestopal. "Методи покращення енергетичної ефективності та скритності цифрових радіорелейних систем передачі". Thesis, Національний авіаційний університет, 2021. https://er.nau.edu.ua/handle/NAU/52213.

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У дисертаційній роботі вирішена актуальна науково-технічна задача, яка полягає в новому комплексному підході до забезпечення мінімальної потужності передавача, достатньої для одержання заданої ймовірності помилки приймання сигналу, та покращеної скритності передачі інформації. Проведені дослідження впливу виду модуляції сигналу на потужність передавача радіорелейної станції. Показано, що найкращі результати досягаються при використанні 4-х позиційного фазоманіпульованого сигналу ФМ-4. При даній смузі пропускання радіоканалу пропонується використати амплітудно-маніпульований сигнал з під
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Gibson, Jason. "Nano-Particles in Multi-Scale Composites and Ballistic Applications." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5745.

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Carbon nanotubes, graphene and nano sized core shell rubber particles have all been extensively researched for their capability to improve mechanical properties of thermoset resins. However, there has been a lack of research on their evaluation for energy absorption in high velocity impact scenarios, and the fundamental mechanics of their failure mechanisms during highly dynamic stress transfer through the matrix. This fundamental research is essential for laying the foundation for improvement in ballistic performance in composite armor. In hard armor applications, energy absorption is larg
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Book chapters on the topic "Multi-beam propagation"

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Wang, Dan Sheng, and Hong Ping Zhu. "Wave Propagation Based Multi-Crack Identification in Beam Structures through Anti-Resonances Information." In Damage Assessment of Structures VI. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-976-8.557.

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Cho, Byungmoon, Michael K. Yetzbacher, Katherine A. Kitney, Eric R. Smith, and David M. Jonas. "Propagation and beam geometry effects on 2D Fourier transform spectra of multi-level systems." In Springer Series in Chemical Physics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-95946-5_137.

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Zhang, Yimin, Xin Li, and Moeness G. Amin. "Mobile Ad Hoc Networks Exploiting Multi-Beam Antennas." In Handbook on Advancements in Smart Antenna Technologies for Wireless Networks. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-988-5.ch019.

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This chapter introduces the concept of multi-beam antenna (MBA) in mobile ad hoc networks and the recent advances in the research relevant to this topic. MBAs have been proposed to achieve concurrent communications with multiple neighboring nodes while they inherit the advantages of directional antennas, such as the high directivity and antenna gain. MBAs can be implemented in the forms of multiple fixed-beam directional antennas (MFBAs) and multi-channel smart antennas (MCSAs). The former either uses multiple predefined beams or selects multiple directional antennas and thus is relatively sim
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Wang, Yan, and Xiaoxue Fan. "Recent Advances in the mm-Wave Array for Mobile Phones." In MIMO Communications - Fundamental Theory, Propagation Channels, and Antenna Systems. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112043.

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With the development of communication system to the mm-wave band, the antenna design in the mm-wave band for mobile phones encounters new requirements and challenges. The mm-wave characteristics of short wavelength, high free-space path loss, and easy-to-be-blocking usually require mm-wave antennas with high gain and beam-scanning capability. Also, considering the very limited space occupied by antennas in mobile phones and the massive production of consumer electronics, small size, low cost, multiband, multi-polarization, and wide beam steering becomes the main key point of mm-wave array perf
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He, Jingjing, Xuefei Guan, and Yongming Liu. "Fatigue Damage Prognostics and Life Prediction with Dynamic Response Reconstruction Using Indirect Sensor Measurements." In Diagnostics and Prognostics of Engineering Systems. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2095-7.ch019.

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This study presents a general methodology for fatigue damage prognostics and life prediction integrating the structural health monitoring system. A new method for structure response reconstruction of critical locations using measurements from remote sensors is developed. The method is based on the empirical mode decomposition with intermittency criteria and transformation equations derived from finite element modeling. Dynamic responses measured from usage monitoring system or sensors at available locations are decomposed into modal responses directly in time domain. Transformation equations b
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Conference papers on the topic "Multi-beam propagation"

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Yang, Siqi, Jeongsoo Kim, and Shwetadwip Chowdhury. "Multi-slice beam-propagation with angle-multiplexed measurements." In Novel Techniques in Microscopy. Optica Publishing Group, 2025. https://doi.org/10.1364/ntm.2025.nth2c.5.

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We present a multi-slice beam-propagation (MSBP) framework to reconstruct 3D refractive-index from multiplexed angular scattering measurements. We verify this framework using synthetically multiplexed measurements and achieve high reconstruction quality up to a multiplexing factor of five.
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Ansari, Maral, Lizhao Song, Peiyuan Qin, Stephanie L. Smith, and Y. Jay Guo. "3D Printed Multi-Beam Flat Lens Antenna System." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10846633.

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Nishiyama, Shimpei, Taisei Urakami, Tamami Maruyama, Minoru Okada, and Akira Ono. "Multi-Beam Metasurface Reflector for Energy Harvesting to Multi-Devices in Different Directions." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10846399.

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Wang, Zhaoyi, Jun Xu, Li Qian, Zhiqiang Yu, Jianyi Zhou, and Wei Hong. "Millimeter-Wave Multi-Beam Pattern Synthesis Based on Multi-Objective Optimization." In 2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP). IEEE, 2024. https://doi.org/10.1109/apcap62011.2024.10881740.

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Seedrala, Tanmayi, Debaprasad Barad, and Balachary Molupoju. "Sub-array based Tile Array Antenna for Beam Forming and Multi-Beam Radar Applications in X-Band." In 2024 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON). IEEE, 2024. https://doi.org/10.1109/mapcon61407.2024.10922900.

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Urakami, Taisei, Tamami Maruyama, Akira Ono, Kazutomo Nakamura, Na Chen, and Minoru Okada. "Reconfigurable Convex-Type Multi-Beam Metasurface Reflector for mmWave Application." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10846354.

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Zhu, He, Ting Zhang, and Jia Du. "Reconfigurable Multi-beam Feed Network for Individually Steering of Multiple Beams." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10846653.

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Ding, Longqiang, Shaolong Guo, Kaiyu Wang, Tao Su, and Bian Wu. "Millimeter-Wave Multi-Beam Antenna Based on Filtering Magnetoelectric Dipole." In 2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP). IEEE, 2024. https://doi.org/10.1109/apcap62011.2024.10881192.

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Li, Xinhao, Yihang Jiang, Fanyi Meng, Xiaoyang Li, Kaifeng Han, and Guangxu Zhu. "Integrated Sensing and Communications Signal SINR Prediction with Multi-Beam Statistical Channel." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10846363.

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Sugimoto, Yoshiki, Takeyuki Tsuchida, Shota Takada, Kunio Sakakibara, Takanori Narita, and Nobuyoshi Kikuma. "Wide-angle Multi-beam Spherical Homogeneous Dielectric Lens Antenna in 270 GHz Band." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10846032.

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Reports on the topic "Multi-beam propagation"

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Krushelnick, Karl. Final Technical Report: DYNAMICS OF MULTI-BEAM RELATIVISTIC LASER PROPAGATION IN UNDERDENSE PLASMA. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/2202684.

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