| 地空路径水凝物交叉极化特性研究 |
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| 引用本文： | 林乐科,赵振维,董庆生,刘玉梅.地空路径水凝物交叉极化特性研究[J].电波科学学报,2006,21(1):49-52. |
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| 作者姓名： | 林乐科 赵振维 董庆生 刘玉梅 |
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| 作者单位： | 南京邮电大学通信工程系,江苏,南京,210003;中国电波传播研究所,山东,青岛,266071;中国电波传播研究所,山东,青岛,266071 |
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| 摘 要： | 水凝物的交叉极化预报模式对10GHz以上频段使用正交极化频率复用的卫星通信系统设计具有重要意义.基于ITU-R与OPEX数据库的地空雨致交叉极化数据和二阶小变量近似的预报模式,给出了一种改进的雨致交叉极化预报模式.与其它模式比较表明,这一模式的预测精度有明显提高.
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| 关 键 词： | 水凝物 交叉极化鉴别度 预报模式 卫星通信 |
| 文章编号： | 1005-0388（2006）01-0049-04 |
| 收稿时间： | 2004-03-07 |
| 修稿时间： | 2004年3月7日 |
Study on hydrometeor-indrced cross-polarization along earth-space parth |
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| LIN Le-ke,ZHAO Zhen-wei,DONG Qing-sheng,LIU Yu-mei.Study on hydrometeor-indrced cross-polarization along earth-space parth[J].Chinese Journal of Radio Science,2006,21(1):49-52. |
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| Authors: | LIN Le-ke ZHAO Zhen-wei DONG Qing-sheng LIU Yu-mei |
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| Institution: | 1. Nanjing Univarsity of Posts and Telecommunications, Nanjing Jiangsu 210003, China; 2. China Research Institute of Radio wave Propagation,Qingdao Shandong 266071 ,China |
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| Abstract: | Prediction method of long-term statistics of hydrometeor-induced crossT polarization is very important in designing satellite communication frequency re-use systems above 10 GHz utilizing orthogonal polarizations. Based on the experimental cumulative distribution data of ITU-R Study Group 3 and OPEX and the two-order small argument approximation model, an improved model of hydrometeor-induced cross-polarization prediction is proposed in this paper. Comparison with other models indicates that this model can obtain better accuracy of prediction. |
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| Keywords: | hydrometeor cross-polarization discrimination (XPD) prediction model satellite communication |
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