恶劣环境下对流层散射信道衰减模型
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摘要
针对现有的对流层散射损耗模型中的缺陷,研究了雨、雪、雾等恶劣气象环境下,对流层散射通信的电波能量衰减。分析了传统晴空大气下对流层散射损耗的计算方法和变化规律,在恶劣气象环境下,研究了雨、雪、雾等恶劣环境下电磁波的衰减率计算方法以及变化规律。同时为避免路径计算的不合理性,研究了恶劣气象环境对应不同的电磁波路径模型。为全天候、各种气象条件下更好地实现对流层散射通信,建立具有一定参考价值的衰减模型提供依据。
To solve the shortcomings of calculating attenuation of troposphere communication,we analyzed the attenuation model of hydro-meteors:rain,snow and fog. We discussed the characteristics of those meteors. Then,we analyzed the way to calculate specific attenuations.And we proposed the method to calculate the path of electromagnetic wave in harsh weather.The consequence can provide help for establishing attenuation model of tropospheric communication,and also can improve communication quality.
To solve the shortcomings of calculating attenuation of troposphere communication,we analyzed the attenuation model of hydro-meteors:rain,snow and fog. We discussed the characteristics of those meteors. Then,we analyzed the way to calculate specific attenuations.And we proposed the method to calculate the path of electromagnetic wave in harsh weather.The consequence can provide help for establishing attenuation model of tropospheric communication,and also can improve communication quality.
引文
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[14]刘西川,刘磊,高太长,等.不同类型降水对毫米波传播特性的影响研究[J].红外与毫米波学报,2013,32(4):379-384.
[15]刘西川,高太长,刘磊,等.基于粒子成像测速技术的降雪微物理特性研究[J].物理学报,2014,63(19):454-462.
[16]毛天鹏,周东方,牛忠霞,等.毫米波云雾衰减计算模型及特性分析[J].无线电通信技术,2004(3):51-54.
[2] DINC E,AKAN O B.A Nonuniform Spatial Rain Attenuation Model for Troposcatter Communication Links[J].IEEE Wireless Communication Letters,2015,4(4):441-444.
[3] WANG Zhuang,WANG Mengnan,WANG Qi,et al:Receiving Antenna Mode of Troposcatter Passive Ranging Based on the Signal Group Delay[J]. IET Microwaves,Antennas&Propagation,2017,11(1):121-128.
[4] WANG Mengnan,WANG Zhuang,WANG Jing,et al:Fading Correlation Modelling for Troposcatter Microwave Propagation in Array Antenna Detection Applications[J].IET Microwaves,Antennas&Propagation,2017,11(6):833-843.
[5] GONG Shuhong,YAN Daopu,WANG Xuan.A Novel Idea of Purposefully Affecting Radio Wave Propagation by Coherent Acoustic Source-induced Atmospheric Refractivity Fluctuation[J].Radio Science,2015,50(10):983-996.
[6]徐松毅,陈常嘉,李文铎.高仰角对流层散射电波传播损耗的一种预计方法[J].电波科学学报,2011,26(3):528-532.
[7]张利军,张蕊,赵振维.对流层散射传播中的偏移损耗分析[J].电子与信息学报,2015,37(6):1502-1506.
[8]赵玉超,秦建存,刘丽哲.对流层散射通信传输损耗预计方法分析[J].无线电工程,2013,43(3):62-64.
[9]代刚,柴焱杰.对流层散射传输损耗的一种简便工程算法[J].无线电工程,2014,44(7):93-96.
[10]宋树田.对流层气象状态对散射链路传输损耗影响分析[J].无线电通信技术,2015,41(1):46-48.
[11] ZHANG Lijun,ZHANG Rui,ZHAO Zhenwei. Analysis of Rotational Loss in Troposcatter Propagation[J].Journal of Electronics&Information Technology,2015,37(6):1502-1506.
[12]康欣,曹仲晴.对流层散射超视距通信传播信道分析[J].无线电通信技术,2015,41(2):35-37.
[13] DASA Dalia,MAITRAB Animesh.Time Series Prediction of Rain Attenuation from Rain Rate Measurement Using Synthetic Storm Technique for a Tropical Location[J].International Journal of Electronics and Communications,2014,68(1):33-36.
[14]刘西川,刘磊,高太长,等.不同类型降水对毫米波传播特性的影响研究[J].红外与毫米波学报,2013,32(4):379-384.
[15]刘西川,高太长,刘磊,等.基于粒子成像测速技术的降雪微物理特性研究[J].物理学报,2014,63(19):454-462.
[16]毛天鹏,周东方,牛忠霞,等.毫米波云雾衰减计算模型及特性分析[J].无线电通信技术,2004(3):51-54.