云南高校图书馆联盟文献共享服务平台- MULTIBEAM

MULTIBEAM: 作品数：37被引量：46H指数：4; 导出分析报告; 相关领域：电子电信天文地球更多>>; 相关期刊：《Journal of Communications and Information Networks》《Chinese Journal of Electronics》《Chinese Optics Letters》《China Ocean Engineering》更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>

Resource Allocation for RSMA-Aided Multibeam Satellite Communications: 《China Communications》2025年第2期241-255,共15页Cui Huanxi Xiao Zhenyu Zhu Lipeng; This paper investigates the resource allocation for rate-splitting multiple access(RSMA)enabled multibeam satellite communication systems.Specifically,we minimize the total unmet user rate,which denotes the difference...; 关键词：multibeam satellite power allocation PRECODING rate allocation rate-splitting multiple access(RSMA)

A Recursive DRL-Based Resource Allocation Method for Multibeam Satellite Communication Systems: 《Chinese Journal of Electronics》2024年第5期1286-1295,共10页Haowei MENG Ning XIN Hao QIN Di ZHAO; supported by the National Natural Science Foundation of China(Grant No.62071354);the Key Research and Development Program of Shaanxi(Grant No.2022ZDLGY05-08);the ISN State Key Laboratory.; Optimization-based radio resource management(RRM)has shown significant performance gains on high-throughput satellites(HTSs).However,as the number of allocable on-board resources increases,traditional RRM is difficult...; 关键词：High-throughput satellites Proximal policy optimization Deep reinforcement learning Long-short term memory

Underwater Gas Leakage Flow Detection and Classification Based on Multibeam Forward-Looking Sonar: 《哈尔滨工程大学学报（英文版）》2024年第3期674-687,共14页Yuanju Cao Chao Xu Jianghui Li Tian Zhou Longyue Lin Baowei Chen; The risk of gas leakage due to geological flaws in offshore carbon capture, utilization, and storage, as well as leakage from underwater oil or gas pipelines, highlights the need for underwater gas leakage monitoring ...; 关键词：Carbon capture utilization and storage(CCUS) Gas leakage Forward-looking sonar Dual-tree complex wavelet transform(DT-CWT) Deep learning

An improved algorithm based on equivalent sound velocity profile method at large incident angle: 《Acta Oceanologica Sinica》2024年第2期161-167,共7页Qianqian Li Qian Tong Fanlin Yang Qi Li Zhihao Juan Yu Luo; The Natural Science Foundation of Shandong Province of China under contract Nos ZR2022MA051 and ZR2020MA090;the National Natural Science Foundation of China under contract No.U22A2012;China Postdoctoral Science Foundation under contract No.2020M670891;the SDUST Research Fund under contract No.2019TDJH103;the Talent Introduction Plan for Youth Innovation Team in universities of Shandong Province(innovation team of satellite positioning and navigation)。; With the development of ultra-wide coverage technology,multibeam echo-sounder(MBES)system has put forward higher requirements for localization accuracy and computational efficiency of ray tracing method.The classical ...; 关键词：equivalent sound speed profile ray tracing method large incident angle edge beam deep sea error correction multibeam echo-sounder system

Channel Correlation Based User Grouping Algorithm for Nonlinear Precoding Satellite Communication System被引量：1: 《China Communications》2024年第1期200-214,共15页Ke Wang Baorui Feng Jingui Zhao Wenliang Lin Zhongliang Deng Dongdong Wang Yi Cen Genan Wu; supported by the Key R&D Project of the Ministry of Science and Technology of China(2020YFB1808005)。; Low Earth Orbit(LEO)multibeam satellites will be widely used in the next generation of satellite communication systems,whose inter-beam interference will inevitably limit the performance of the whole system.Nonlinear ...; 关键词：channel correlation inter-beam interference multibeam satellite Tomlinson-Harashima precoding user grouping

Automatic segmentation of gas plumes from multibeam water column images using a U-shape network被引量：1: 《Journal of Oceanology and Limnology》2023年第5期1753-1764,共12页Fanlin YANG Feng WANG Zhendong LUAN Xianhai BU Sai MEI Jianxing ZHANG Hongxia LIU; Supported by the National Natural Science Foundation of China (Nos.41930535,41906165);the High-level Foreign Expert Introduction Program (No.G2021025006L);the SDUST Research Fund (No.2019TDJH103)。; Cold seeps are widely developed on the seabed of continental margins and can form gas plumes due to the upward migration of methane-rich fluids.The detection and automatic segmentation of gas plumes are of great signi...; 关键词：MULTIBEAM water column image(WCI) gas plumes UNet automatic segmentation

Fair multigroup multicast precoding design based on traffic demands for multibeam satellite systems: 《Chinese Journal of Aeronautics》2023年第10期366-374,共9页Zhiqi DAI Zhen XU; the National Key R&D Program of China(No.2020YFB1806800).; Onboard resources are limited for multibeam satellite communication systems,while differences exist in traffic demands among users.Since conventional multigroup multicast precoding methods do not take traffic demands ...; 关键词：Satellite communication systems Multigroup multicast precoding Traffic demand Throughput satisfaction ratio Fairness optimization

Development of RF windows for 650 MHz multibeam klystron被引量：2: 《Nuclear Science and Techniques》2023年第9期58-68,共11页Sheng-Chang Wang Zu-Sheng Zhou Zhi-Jun Lu Zhi-Qing Liu Shigeki Fukuda Yu Liu Jing-Yi Li Wei-Ming Li; Radio frequency windows are developed and evaluated for a 650 MHz continuous-wave multibeam klystron.Thin-pillbox windows with alumina and beryllia disks are designed with an average RF power of CW 400 kW.Results of a...; 关键词：RF window High-power test MBK

Multibeam laser-plasma interaction at the Gekko XII laser facility in conditions relevant for direct-drive inertial confinement fusion被引量：1: 《High Power Laser Science and Engineering》2023年第2期70-80,共11页G.Cristoforetti P.Koester S.Atzeni D.Batani S.Fujioka Y.Hironaka S.Hüller T.Idesaka K.Katagiri K.Kawasaki R.Kodama D.Mancelli Ph.Nicolai N.Ozaki A.Schiavi K.Shigemori R.Takizawa T.Tamagawa D.Tanaka A.Tentori Y.Umeda A.Yogo L.A.Gizzi; This work was carried out within the framework of the EUROfusion Consortium,funded by the European Union via the Euratom Research and Training Programme(Grant Agreement No.101052200–EUROfusion);The views and opinions expressed are however those of the author(s)only and do not necessarily reflect those of the European Union or the European Commission.Neither the European Union nor the European Commission can be held responsible for them.The involved teams have operated within the framework of the Enabling Research Project:ENR-IFE.01.CEA‘Advancing shock ignition for direct-drive inertial fusion’;This work was also done with the support and under the auspices of the NIFS Collaboration Research program(2021NIFS18KUGK123).; Laser–plasma interaction and hot electrons have been characterized in detail in laser irradiation conditions relevant for direct-drive inertial confinement fusion.The experiment was carried out at the Gekko XII laser...; 关键词：inertial confinement fusion laser plasma interaction parametric instabilities

Recognition of Fluvial Bank Erosion Along the Main Stream of the Yangtze River: 《Engineering》2022年第12期50-61,共12页Ge Yan Heqin Cheng Zeyu Jiang Lizhi Teng Ming Tang Tian Shi Yuehua Jiang Guoqiang Yang Quanping Zhou; This study was funded by the joint project supported by National Natural Science Foundation of China(NSFC)-Netherlands Organisation for Scientific Research(NWO)-Engineering and Physical Sciences Research Council(EPSRC)(51761135023);the China Geological Survey(DD20190260);NSFC(41476075).; Recognizing the risk of fluvial bank erosion is an important challenge to ensure the early warning and prevention or control of bank collapse in river catchments,including in the Yangtze River.This study introduces a ...; 关键词：Multibeam echo-sounding data Morphological elements Bank erosion Bank scarp Scour pits Bank collapse

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