大学物理 ›› 2017, Vol. 36 ›› Issue (10): 48-51.doi: 10. 16854 /j. cnki. 1000-0712. 2017. 10. 012

• 物理.自然.技术.社会 • 上一篇    下一篇

微波两径传播模型影响因素分析

胡云   

  1. 重庆电子工程职业学院计算机学院,重庆401331
  • 收稿日期:2016-09-26 修回日期:2017-03-09 出版日期:2017-10-20 发布日期:2017-10-20
  • 作者简介:胡云( 1955—) ,男,重庆市忠县人,重庆电子工程职业学院计算机学院教授,主要从事无线网络教学与研究工作
  • 基金资助:
    全国高等院校计算机基础教育研究会2016 年度科研规划( 高职) 纵向课题《基于“职业岗位、角色能力”的计算机网络技术专业课
    程体系与课程标准建设研究》项目( 主持人胡云,2016GHB02023) 资助

Analysis of influence factors for the model of microwave two - path propagation

HU Yun   

  1. Department of Computer Application,Chongqing College of Electronic Engineering,Chongqing 401331,China
  • Received:2016-09-26 Revised:2017-03-09 Online:2017-10-20 Published:2017-10-20

摘要: 研究微波两路径传播模型效果及影响因素. 应用电磁波和天线理论,推导出两径波叠加电场振幅和接收功率的表达式,给出了叠加电场振幅和功率与天线水平距离关系的图像. 结果表明,微波两路径传播时,接收点处电场振幅和接收功率都随天线间的距离呈现波动性,天线高度和天线间距离直接地影响接收点电场的振幅和接收功率,但天线间距离的影响更大.

关键词: 两径传播模型, 叠加波, 电场振幅, 接收功率

Abstract: The model effect and influence factors of microwave two - path propagation are studied. By applying electromagnetic wave and antenna theory,two path wave superposition formula is derived by using electric field amplitude and receiving power. The images of the relationship between the amplitude and the receiving power of the superimposed electric field and the horizontal distance of the antenna are given. The results show that when the two path microwave propagates,the electric field amplitude at the receiving point and receiving power with the distance between the antenna fluctuate. Antenna height and distance between antennas affect directly the amplitude of the received electric field and receiving power,but the influence of the distance between the antenna units is greater

Key words: two path propagation mode, superposition, amplitude of electric field, receiving powe