| 董群锋,郭立新,王立,张辉,王明军.沙尘媒质微波衰减特性研究*[J].装备环境工程,2016,13(6):85-89. 董群锋,郭立新,王立,张辉,王明军.Research on Microwave Attenuation in Sand and Dust Medium[J].Equipment Environmental Engineering,2016,13(6):85-89. |
| 沙尘媒质微波衰减特性研究* |
| Research on Microwave Attenuation in Sand and Dust Medium |
| 投稿时间：2016-04-18 修订日期：2016-11-14 |
| DOI：10.7643/ issn.1672-9242.2016.06.015 |
| 中文关键词: 微波 沙尘 衰减 |
| 英文关键词:microwave attenuation sand and dust |
| 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）. |
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| 中文摘要: |
| 目的 研究沙尘媒质中微波衰减特性。方法 根据随机媒质电磁波传播理论,给出了沙尘媒质中沿水平路径的微波衰减和相移模型。结果 结果表明,衰减模型与Goldhirsh模型比较吻合,验证了其正确性。给出了沿地空路径的微波衰减和相移模型,与Sharief及Erdenekhuu衰减模型计算结果进行了比较和分析,结果表明,本文模型预测结果与Sharief模型结果一致。结论 仿真结果验证提出模型的有效性,模型计算方便,适用于不同频率。 |
| 英文摘要: |
| Objective to research the characteristics of microwave attenuation in sand and dust storms. Methods According to the electromagnetic wave propagation theory in discrete random media, expressions for attenuation and phase shift coefficients for a medium with sand and dust particles are derived. Results Computations show the predicted values from the proposed attenuation formula are an excellent agreement with the values by Goldhirsh’s formula, which verified the validity of proposed formula. Expressions for total attenuation and phase shift in earth satellite links for sand and dust particles are also derived. Predictions made with proposed formula are compared with results obtained by Sharief’s formula and Erdenekhuu’s formula. The attenuation values calculated by the proposed model are good agreement to those obtained by Sharif’s model. Conclusion The results verified the accuracy and validity of the proposed formulas, which are simple and suitable for different frequency, a quick and easy way of calculating attenuation. |
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