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Exploiting W. Ellison model for seawater communication at gigahertz frequencies based on world ocean atlas data
ETRI Journal ( IF 1.3 ) Pub Date : 2020-04-20 , DOI: 10.4218/etrij.2018-0492 Muhammad Tahir 1 , Iftikhar Ali 1 , Piao Yan 1 , Mohsin Raza Jafri 2 , Jiang Zexin 1 , Di Xiaoqiang 1
ETRI Journal ( IF 1.3 ) Pub Date : 2020-04-20 , DOI: 10.4218/etrij.2018-0492 Muhammad Tahir 1 , Iftikhar Ali 1 , Piao Yan 1 , Mohsin Raza Jafri 2 , Jiang Zexin 1 , Di Xiaoqiang 1
Affiliation
Electromagnetic (EM) waves used to send signals under seawater are normally restricted to low frequencies () because of sudden exponential increases of attenuation () at higher . The mathematics of EM wave propagation in seawater demonstrate dependence on relative permeability (), relative permittivity (), conductivity (), and of transmission. Estimation of and based on the W. Ellison interpolation model was performed for averaged real‐time data of temperature () and salinity () from 1955 to 2012 for all oceans with latitude/longitude points and 101 depth points up to 5500 m. Estimation of parameters such as real and imaginary parts of , , , , loss tangent (tan ), propagation velocity (), phase constant (), and contributes to absorption loss () for seawater channels carried out by using normal distribution fit in the 3 GHz–40 GHz range. We also estimated total path loss () in seawater for given transmission power and antenna (dipole) gain. MATLAB is the simulation tool used for analysis.
中文翻译:
基于世界海洋图集数据,在千兆赫频率下利用W. Ellison模型进行海水通讯
海水中用于发送信号的电磁波(EM)通常限制在低频()上,因为在更高的频率下,衰减()突然呈指数增加。EM波在海水中传播的数学方法表明,它取决于相对磁导率(),相对介电常数(),电导率()和传输率。对W. Ellison插值模型进行了估计并基于W. Ellison插值模型,对所有纬度/经度点和101个深度点达5500 m的海洋从1955年至2012年的平均实时温度()和盐度()数据进行了估算。的参数,例如实部和虚部的估计,,,损耗正切(tan ),传播速度(),相位常数(),并通过在3 GHz–40 GHz范围内使用正态分布拟合来实现海水通道的吸收损耗()。对于给定的传输功率和天线(偶极子)增益,我们还估算了海水中的总路径损耗()。MATLAB是用于分析的仿真工具。
更新日期:2020-04-20
中文翻译:
基于世界海洋图集数据,在千兆赫频率下利用W. Ellison模型进行海水通讯
海水中用于发送信号的电磁波(EM)通常限制在低频()上,因为在更高的频率下,衰减()突然呈指数增加。EM波在海水中传播的数学方法表明,它取决于相对磁导率(),相对介电常数(),电导率()和传输率。对W. Ellison插值模型进行了估计并基于W. Ellison插值模型,对所有纬度/经度点和101个深度点达5500 m的海洋从1955年至2012年的平均实时温度()和盐度()数据进行了估算。的参数,例如实部和虚部的估计,,,损耗正切(tan ),传播速度(),相位常数(),并通过在3 GHz–40 GHz范围内使用正态分布拟合来实现海水通道的吸收损耗()。对于给定的传输功率和天线(偶极子)增益,我们还估算了海水中的总路径损耗()。MATLAB是用于分析的仿真工具。