| 有限雨介质相干场的准确表达式 |
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| 引用本文： | 李应乐,袁单.有限雨介质相干场的准确表达式[J].海南大学学报(自然科学版),2004,22(2):120-122. |
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| 作者姓名： | 李应乐 袁单 |
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| 作者单位： | 咸阳师范学院,物理系,陕西,咸阳,712000;咸阳师范学院,物理系,陕西,咸阳,712000 |
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| 基金项目： | 陕西省教委自然科学基金资助项目(03JK070) |
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| 摘 要： | 导出了有限大小离散介质中毫米波段相干散射场的准确表达式,并以雨介质为例,应用所得结果进行数值仿真,结果表明:雨介质的大小对毫米波的衰减不会产生较大的影响,波的衰减随频率、降雨率的增大而增大,呈现出非线性,与有关文献一致,具有明确的物理意义.
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| 关 键 词： | 相干场 前向后向散射振幅 有限雨区 准确解 |
| 文章编号： | 1004-1729(2004)02-0120-03 |
| 修稿时间： | 2003年6月8日 |
The Accurate Expression of Coherent Scattering Field in Limited Rain Medium |
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| LI Ying-le,YUAN Dan.The Accurate Expression of Coherent Scattering Field in Limited Rain Medium[J].Natural Science Journal of Hainan University,2004,22(2):120-122. |
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| Authors: | LI Ying-le YUAN Dan |
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| Abstract: | In millimeter wave band,the accurate expression of coherent scattering field in limited rain medium is presented,which has the obvious physics significance.when rain medium is taken as an example,the result obtained is numerically imitated with rain medium.Computing results show that the attenuation of millimeter waves is not seriously influenced by the size of rain medium.The attenuation nonlinearly increases versus the operating frequency and rain rate,which is agreement with the references. |
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| Keywords: | coherent field scattering amplitude of backward and forward limited rain area accurate solution |
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