空间电子技术2024，Vol.21Issue(3)：33-39,7.DOI:10.3969/j.issn.1674-7135.2024.03.005
电磁波在电离层中的传输建模分析
Modeling analysis of electromagnetic wave transmission in the ionosphere
摘要
Abstract
In the process of electromagnetic wave transmission from the cosmic space to the earth,it is inevitable that it needs to pass through the earth's ionosphere and be affected by the ionosphere refraction,reflection,penetration and so on.In order to study the propagation path of electromagnetic waves in the ionosphere,this paper utilizes the data of IRI2016 ionosphere model and NRLMSISE-00 model,based on the ray tracing algorithm,and comprehensively utilizes the Runge-Kutta method and the variable step size to realize the electromagnetic wave propagation path in the ionosphere.The Runge-Kutta method is used,and a variable step size is adopted to realize the transmission calculation of electromagnetic waves in the ionosphere multilayer space complex plasma.Meanwhile,this paper also studies the propagation paths of electromagnetic waves of different frequencies and latitudes in the ionosphere.The study shows that:higher frequency electromagnetic waves are less disturbed by the ionosphere,and the offset angle of electromagnetic propagation is only 0.795°at 100 MHz;the non-uniform layered structure of the ionosphere determines the multi-mode phenomenon of electromagnetic wave transmission,and is affected by illumination,and is strongly disturbed by the ionosphere during daytime and mid-latitude,and the offset angle is greater than 2.2°,compared with the nighttime and low and high latitude.The offset is larger than 2.2°,compared to the nighttime and low and high latitude regions.关键词
电磁波/电离层传输计算/射线追踪法/传输轨迹Key words
electromagnetic waves/ionospheric transport calculations/ray tracing method/transport paths引用本文复制引用
赵浩宇,和战杰,方美华,魏志勇..电磁波在电离层中的传输建模分析[J].空间电子技术,2024,21(3):33-39,7.
