中低纬调制高频加热电离层ELF／VLF辐射模拟  

ELF/VLF waves radiated by modulated HF heating ionospheric in mid-latitude and equatorial regions

作　　者：李清亮[1] 杨巨涛[1] 闫玉波[1] 赵耀军[2] 

机构地区：[1]中国电波传播研究所,山东青岛266071 [2]西安机电信息研究所,陕西西安710065

出　　处：《电波科学学报》2008年第5期883-887,共5页Chinese Journal of Radio Science

摘　　要：从基本的电子能量方程出发,改进了幅度调制HF电波加热低电离层模型。计算了低电离层电子温度和电导率随加热时间的变化,以及不同高度上加热产生ELF/VLF Hall电流大小。根据实际的电离层参数,在一定加热条件下,计算了北京、上海、昆明和海口所产生ELF/VLF Hall总电偶极矩大小。结果表明:利用幅度调制HF电波加热中低纬度地区低电离层,可以有效形成ELF/VLF电波辐射源。An improved model for the lower ionosphere heating by amplitude-modulated HF waves is presented based on elementary electron energy equation. Evolution profile of electron temperature and conductivity with heating time in the lower ionosphere, ELF/VLF Hall currents in different altitudes are also calculated in this paper. Using practical ionosphere parameters, calculated the effective ELF/VLF Hall dipole moments in Beijing, Shanghai, Kunming and Haikou based on certain conditions. The results indicate that, using amplitude-modulated HF heating waves for the lower ionospheric heating in mid-latitude and equatorial regions can efficiently produce radiation sources of ELF/VLF waves.

关 键 词：电离层加热 幅度调制 极低频/甚低频 

分 类 号：P352[天文地球—空间物理学]