Vegetation scattering attenuation characteristics of terahertz wave

doi:10.23919/JSEE.2022.000133

Journal of Systems Engineering and Electronics ›› 2023, Vol. 34 ›› Issue (6): 1501-1507.doi: 10.23919/JSEE.2022.000133

• ELECTRONICS TECHNOLOGY • Previous Articles Next Articles

Vegetation scattering attenuation characteristics of terahertz wave

Qingfeng JING¹^,*(), Zhuo DIAO²(), Zhongbo ZHU³()

¹ College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210019, China
² The 28th Research Institute of China Electronics Technology Group Corporation, Nanjing 210000, China
³ The 504 Research Institution, China Aerospace Science and Technology Corporation, Xi’an 710100, China

Received:2020-03-18 Accepted:2022-06-07 Online:2023-12-18 Published:2023-12-29
Contact: Qingfeng JING E-mail:jing_nuaa@163.com;zhuodiao6@foxmail.com;zhuzb@cast504.com
About author:
JING Qingfeng was born in 1981. He received his M.S. and Ph.D. degrees from the School of Electronics and Information Engineering, Harbin Institute of Technology in 2005 and 2009, respectively. He has been working as an associate professor since 2009 in the College of Astronautics, Nanjing University of Aeronautics and Astronautics. He is now in charge of several funded projects. His research interests are digital signal processing, satellite communication, and broadband multi-carrier communication. E-mail: jing_nuaa@163.com

DIAO Zhuo was born in 1996. She is a graduate student in the Collegee of Astronautics, Nanjing University of Aeronautics and Astronautics. Her research interests are terahertz communication and channel modeling. E-mail: zhuodiao6@foxmail.com

ZHU Zhongbo was born in 1980. He received his B.S. degree in electronic science and technology from Xidian University, Xi’an, China, in 2007. Since then, he has been with the China Academy of Space Technology, Xi’an, China. Currently, he is a professor. His recent research interest is terahertz communication. E-mail: zhuzb@cast504.com
Supported by:
This work was supported by the Fundamental Research Funds for the Central Universities (NT2021026).

Abstract

Abstract:

A terahertz (THz) wave transmitted through vegetation experiences both absorption and scattering caused by the air molecules and leaves. This paper presents the scattering attenuation characteristics of vegetation in a THz range. The theoretical path loss model near the vegetation yields the average attenuation of THz waves in a mixed channel composed of air and vegetation leaves. Furthermore, a simplified model of the vegetation structure is obtained for generic vegetation types based on a variety of parameters, such as leaf size, distribution, and moisture content. Finally, based on specific vegetation species and different levels of air humidity, the attenuation characteristics under different conditions are calculated, and the influence of different model parameters on the attenuation characteristics is obtained.

Key words: terahertz (THz), scatter attenuation, vegetation, vegetation structure model

Qingfeng JING, Zhuo DIAO, Zhongbo ZHU. Vegetation scattering attenuation characteristics of terahertz wave[J]. Journal of Systems Engineering and Electronics, 2023, 34(6): 1501-1507.

Figures/Tables 8

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Vegetation scattering attenuation characteristics of terahertz wave

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