Research on Electromagnetic Wave Propagation Prediction for Advanced Ubiquitous Information Communications

先进泛在信息通信电磁波传播预测研究

基本信息

  • 批准号:
    17560349
  • 负责人:
  • 金额:
    $ 2.25万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2007
  • 项目状态:
    已结题

项目摘要

For future advanced ubiquitous information communications, it would be expected to use higher frequency for wireless communication, where detail surrounding environment would affect for electromagnetic wave propagation. Therefore effective analytical propagation prediction method should be needed for proper installation for wireless access points. By our investigation, Shooting and Bouncing Rays (SBR) method is found to be a powerful tool for such purpose.SBR method is one of the high frequency methods and discretized radiating rays will be traced from an antenna to the propagating space with experiencing reflections and transmissions through walls and diffraction at corners of the surrounding buildings. Since it would be impossible to take into account all multiple scattering processes, one has to find an efficient algorithm for extracting dominant contribution from them.It is found that direct, multiply reflected and primary edge diffracted waves play important roles to the total field for high frequency outdoor propagation environment, whereas multiply reflected and transmitted waves are important components for indoor propagation.Special attention has been made for ray tracing through lossy dielectric medium such as concrete walls, where the proper definition of the propagation direction has to be found.Wave propagation is difficult to understand since one cannot see it We have also studied visualization methods of the electromagnetic field quantities such as electric, magnetic, and energy flow vector field by coloring and expressing graphically.
对于未来先进的无处不在的信息通信,将期望使用更高的频率用于无线通信,其中详细的周围环境将影响电磁波传播。因此,需要有效的分析传播预测方法来正确安装无线接入点。通过我们的研究发现,射弹法(Shooting and Bouncing Rays,简称SBR)是一种非常有效的方法,SBR法是一种高频方法,它将离散化的辐射射线从天线追踪到传播空间,经历反射和透射穿过墙壁以及在周围建筑物拐角处的衍射。由于不可能考虑所有的多次散射过程,因此必须找到一种有效的算法来提取其中的主要贡献。研究发现,直达波、多次反射波和主边缘衍射波对高频室外传播环境的总场起着重要作用,而多次反射波和透射波是室内传播的重要组成部分,特别关注通过有耗介质(如混凝土)的射线追踪波的传播是很难理解的,因为人们看不到它。我们还研究了电磁场量的可视化方法,如电,磁和能量流矢量场,通过着色和图形化表示。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Electromagnetic Wave Propagation Estimation by 3-D SBR Method
A visual simulation of effectiveness of security cameras
安全摄像头有效性的视觉模拟
Target recognition and visualization of cylindrical scatterers using their monostatic RCS -Comparison between E wave and H wave-
使用单基地 RCS 的圆柱形散射体的目标识别和可视化 -E 波和 H 波之间的比较 -
Reconstruction of polygonal cylindrical targets from their monostatic RCS
从单基地 RCS 重建多边形圆柱形目标
高周波電磁波伝搬の対話的可視化による無線通信システムの信頼性提示
通过高频电磁波传播的交互式可视化展示无线通信系统的可靠性
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SHIRAI Hiroshi其他文献

Uniform Asymptotic Solution For Conducting Wedge Diffraction Based On Physical Optics Current
基于物理光学电流的楔形衍射均匀渐近解
Wake-up Control for Wireless Sensor Networks Collecting top-k Data with Temporal Correlation
无线传感器网络的唤醒控制收集具有时间相关性的 top-k 数据
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    TA Ngoc Quang;SHIRAI Hiroshi;Junya Shiraishi and Hiroyuki Yomo
  • 通讯作者:
    Junya Shiraishi and Hiroyuki Yomo
TE Plane Wave Diffraction by Window Aperture on a Thick Conducting Wall
厚传导壁上窗口孔径的 TE 平面波衍射
逐次更新ヒストグラムによる複数音源追尾手法の考察
使用顺序更新直方图的多声源跟踪方法的考虑
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    SHIRAI Hiroshi;鳥生 翼,陶山 健仁
  • 通讯作者:
    鳥生 翼,陶山 健仁

SHIRAI Hiroshi的其他文献

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{{ truncateString('SHIRAI Hiroshi', 18)}}的其他基金

A study on radio wave propagation estimation and its visualization in a large metropolitan area
大都市区无线电波传播估计及其可视化研究
  • 批准号:
    19K04398
  • 财政年份:
    2019
  • 资助金额:
    $ 2.25万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Research on Electromagnetic Wave Propagation Estimation for Constructing Ubiquitous Information Communication Networks
构建泛在信息通信网络的电磁波传播估计研究
  • 批准号:
    20360176
  • 财政年份:
    2008
  • 资助金额:
    $ 2.25万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
A Study on Electromagn etic Wave Propagation Prediction for Mobile Communication in an Urban Space
城市空间移动通信电磁波传播预测研究
  • 批准号:
    13650425
  • 财政年份:
    2001
  • 资助金额:
    $ 2.25万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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Millimeter-Wave Metasurface Reflectors and Transmitarrays for Electromagnetic Wave Propagation Control
用于电磁波传播控制的毫米波超表面反射器和发射阵列
  • 批准号:
    RTI-2022-00579
  • 财政年份:
    2021
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Robust and Efficient Numerical Methods for Electromagnetic Wave Propagation in Complex Media
复杂介质中电磁波传播的鲁棒高效数值方法
  • 批准号:
    2011943
  • 财政年份:
    2020
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    Standard Grant
Energy mapping of precipitating plasmas by oblique electromagnetic wave propagation effects and auroral 4D imaging
通过倾斜电磁波传播效应和极光 4D 成像绘制沉淀等离子体的能量图
  • 批准号:
    20H02162
  • 财政年份:
    2020
  • 资助金额:
    $ 2.25万
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Development of numerical simulation of ULF electromagnetic wave propagation in the lithosphere and its application to global electromagnetic environment problems
岩石圈超低频电磁波传播数值模拟进展及其在全球电磁环境问题中的应用
  • 批准号:
    20K04412
  • 财政年份:
    2020
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High-precision defect detection method for metallic tubes using electromagnetic wave propagation inside the metallic tube
利用电磁波在金属管内传播的高精度金属管缺陷检测方法
  • 批准号:
    19K04919
  • 财政年份:
    2019
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    $ 2.25万
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    Grant-in-Aid for Scientific Research (C)
Electromagnetic Wave Propagation Simulations in Microscopic Scale Domains by Meshless Method
无网格方法在微观尺度域中的电磁波传播模拟
  • 批准号:
    18K11329
  • 财政年份:
    2018
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Development of analytical methods for cross-polarization components in electromagnetic wave propagation in random media
随机介质中电磁波传播交叉极化分量分析方法的发展
  • 批准号:
    18K04187
  • 财政年份:
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    $ 2.25万
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Development of a Stable Meshless Method for Electromagnetic Wave Propagation Analysis in Three-Dimensional Complex Shaped Domains and its Acceleration
三维复杂形状域电磁波传播分析的稳定无网格方法及其加速的发展
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    15K00177
  • 财政年份:
    2015
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Stochastic Contour Integral Methodology for the Computation of Two-Dimensional Electromagnetic Wave Propagation
计算二维电磁波传播的随机轮廓积分方法
  • 批准号:
    281198991
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    2015
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Research on generic in-body electromagnetic wave propagation and application for body area network
通用体内电磁波传播及体域网应用研究
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  • 财政年份:
    2015
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