| 董群锋,李应乐,李俊杰,张辉.基于Mie理论的带电沙尘媒质微波衰减特性研究[J].装备环境工程,2018,15(6):99-102. DONG Qun-feng,LI Lngi-le,LI Jun-jie,ZHANG Hui.Microwave Attenuation Characteristics in Charged Sand and Dust Medium Based on Mie Theory[J].Equipment Environmental Engineering,2018,15(6):99-102. |
| 基于Mie理论的带电沙尘媒质微波衰减特性研究 |
| Microwave Attenuation Characteristics in Charged Sand and Dust Medium Based on Mie Theory |
| 投稿时间：2018-03-08 修订日期：2018-06-25 |
| DOI：10.7643/ issn.1672-9242.2018.06.019 |
| 中文关键词: 微波 带电沙尘 衰减 |
| 英文关键词:microwave charged sand and dust attenuation |
| 基金项目:国家自然科学基金项目（61102018）；中国博士后基金项目（2014M562371）；陕西省自然科学基础研究项目（2014JM8312）；咸阳师范学院青蓝计划人才培养项目（XSYQL201609）。 |
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| Author | Institution |
| DONG Qun-feng | 1.School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China;2.Department of Physics and Electronic Technology, Shaanxi Xueqian Normal University, Xi’an 710100, China |
| LI Lngi-le | Department of Physics and Electronic Technology, Shaanxi Xueqian Normal University, Xi’an 710100, China |
| LI Jun-jie | School of Science, Xi' an Technological University, Xi’an, Shaanxi 710000, China |
| ZHANG Hui | School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China |
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| 中文摘要: |
| 目的 研究带电沙尘媒质中微波衰减特性。方法 根据带电球形粒子Mie散射理论，分析带电沙尘粒子的散射特性及带电沙尘媒质的微波衰减。结果 在同一频率下，消光系数随着沙粒半径增大而增大，带电沙粒的消光系数要大于不带电沙粒的消光系数。对于同一频率和能见度，带电沙的衰减要比不带电沙的衰减要大，且衰减随能见度的增大而减小。结论 带电沙尘粒子对微波传播影响比中性沙尘粒子明显。 |
| 英文摘要: |
| Objective To research microwave attenuation characteristics in charged sand and dust. Methods According to Mie scattering theory for a charged spherical particle, the scattering of charged sand and dust particle and attenuation properties for a medium with charged sand and dust particles were investigated. Results At the same frequency, the normalized extinction cross section increased with increase of particle radius size. The extinction coefficient of charged sand particles was greater than that of uncharged sand particles. The attenuations induced by charged sand and dust particle were greater than those of uncharged sand, and wave attenuation decreased with the increase of visibility. Conclusion The effects of charged dust particles on microwave propagation are more obvious than those of neutral dust particles. |
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