中国物理B ›› 2015, Vol. 24 ›› Issue (5): 54101-054101.doi: 10.1088/1674-1056/24/5/054101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Influence of obstacle on electromagnetic wave propagation in evaporation duct with experiment verification

史阳, 杨坤德, 杨益新, 马远良   

  1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
  • 收稿日期:2014-09-10 修回日期:2014-11-14 出版日期:2015-05-05 发布日期:2015-05-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11174235) and the Fundamental Research Funds for the Central Universities of China (Grant No. 3102014JC02010301).

Influence of obstacle on electromagnetic wave propagation in evaporation duct with experiment verification

Shi Yang (史阳), Yang Kun-De (杨坤德), Yang Yi-Xin (杨益新), Ma Yuan-Liang (马远良)   

  1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2014-09-10 Revised:2014-11-14 Online:2015-05-05 Published:2015-05-05
  • Contact: Yang Kun-De E-mail:ykdzym@nwpu.edu.cn
  • About author:41.20.Jb; 94.20.ws
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11174235) and the Fundamental Research Funds for the Central Universities of China (Grant No. 3102014JC02010301).

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摘要： In this paper, the influence of obstacle on electromagnetic wave propagation in an evaporation duct is investigated, both from numerical simulation and experimental observation. A comparison of electromagnetic wave propagation in evaporation duct with and without obstacle for a typical case is presented. The presence of obstacle causes a significant increase in path loss. The obstacle has significant impact on electromagnetic wave propagation when the frequency is higher than 5 GHz and when the evaporation duct height is higher than 10 m. The influence of an island on electromagnetic wave propagation was observed in the experiment held in the South China Sea, October 2012. The experiment result shows that the island causes about 30–40 dB increase in path loss. The discrepancy between model and measurement is analyzed and the errors of transmitting antenna height and relative humidity are the possible causes of the discrepancy.

关键词: evaporation duct, influence of obstacle, electromagnetic wave propagation, evaporation duct experiment

Abstract: In this paper, the influence of obstacle on electromagnetic wave propagation in an evaporation duct is investigated, both from numerical simulation and experimental observation. A comparison of electromagnetic wave propagation in evaporation duct with and without obstacle for a typical case is presented. The presence of obstacle causes a significant increase in path loss. The obstacle has significant impact on electromagnetic wave propagation when the frequency is higher than 5 GHz and when the evaporation duct height is higher than 10 m. The influence of an island on electromagnetic wave propagation was observed in the experiment held in the South China Sea, October 2012. The experiment result shows that the island causes about 30–40 dB increase in path loss. The discrepancy between model and measurement is analyzed and the errors of transmitting antenna height and relative humidity are the possible causes of the discrepancy.

Key words: evaporation duct, influence of obstacle, electromagnetic wave propagation, evaporation duct experiment

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
94.20.ws (Electromagnetic wave propagation)