海口地区雨衰落斜率统计分析

赵振维; 张鑫; 林乐科; 卢昌胜; 朱庆林

海口地区雨衰落斜率统计分析

1.
中国电波传播研究所电波环境及模化技术重点实验室, 山东青岛 266107
2. 宇航动力学国家重点实验室, 陕西西安 710043

详细信息

作者简介:
赵振维(1965-),男,河北人,研究员,博士,中国电波传播研究所副总工程师,主要研究方向为电波传播和电波环境特性等;张鑫(1986-),男,安徽人,硕士,主要从事降雨传播特性方面的研究;林乐科(1972-),男,山东人,高级工程师,博士,主要从事对流层环境与电波传播特性研究;卢昌胜(1983-),男,甘肃人,工程师,硕士,主要从事毫米波传播特性方面的研究;朱庆林(1981-),男,河南人,博士,中国电波传播研究所工程师,主要从事电波传播和GNSS遥感方面的研究。

通信作者:
张鑫 E-mail:melodyzx@126.com

中图分类号: P426.6
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出版历程
- 收稿日期: 2011-12-18
- 网络出版日期: 2020-12-30
- 发布日期: 2012-10-30

Statistical analysis on rain fade slope at Haikou

1.
China Research Institute of Radio Wave Propagation, National Key Laboratory of Electromagnetic Environment, Qingdao Shandong 266107, China
2. State Key Laboratory of Astronautic Dynasmics, Xi'an Shaanxi 710043, China

摘要

摘要: 基于海口站接收的为期一年的中卫一号卫星12.5 GHz信标数据,分析了降雨过程中衰落斜率的统计分布特性。衰落斜率的条件概率分布表明正负衰落斜率满足对称分布,并对这一结论进行了验证;基于实测衰落斜率的累积分布特性,重新拟合了VandeKamp模型中的衰落斜率标准偏差,并建立了该参数与衰减电平和时间间隔之间新的关系式。比较了VandeKamp模型、Salonen模型和改进模型的预测误差,改进模型在该地区具有最好的预测精度。
- 衰落斜率 /
- 雨衰减 /
- VandeKamp模型 /
- 抗衰落技术
Abstract: A statistical analysis is made of the measured distribution of fade slope of rain attenuation, measured at Haikou from the ChinaStar-1 at the frequency of 12.5GHz. The distribution of conditional probability density of fade slope shows that the positive and negative slopes are distributed symmetrically. The standard deviation of fade slope which is the only parameter in VandeKamp model is refitted to fit the cumulative distribution of fade slope and a new relationship of this parameter to attenuation level and time interval is proposed. By comparison with the VandeKamp model and Salonen model, the improved model obtains the best accuracy.
- fade slope /
- rain attenuation /
- VandeKamp model /
- fade mitigation techniques

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参考文献(18)

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