| 电磁波在电离层的传播特性研究 |
| |
| 引用本文： | 虞超,沈国柱,顾斌,程国生.电磁波在电离层的传播特性研究[J].南京气象学院学报,2013,5(4):379-384. |
| |
| 作者姓名： | 虞超 沈国柱 顾斌 程国生 |
| |
| 作者单位： | 南京信息工程大学 物理与光电工程学院,南京,210044;南京信息工程大学 物理与光电工程学院,南京,210044;南京信息工程大学 物理与光电工程学院,南京,210044;南京信息工程大学 物理与光电工程学院,南京,210044 |
| |
| 基金项目： | 国家自然科学基金(11105075) |
| |
| 摘 要： | 研究了折射率n与电子数浓度Ne及高度h之间的关系,并通过数值模拟对电子数浓度的高度剖面和折射率随高度的变化规律进行了分析.将模拟和实际观测出的频高图进行对比,发现在高电离层模拟值与实际值较相近,在低电离层则由于非线性关系及Es层存在的效应,模拟值与实际值有较大的误差.
|
| 关 键 词： | 电磁波 电离层 折射率 电子数浓度 数值模拟 |
| 收稿时间： | 2011/11/15 0:00:00 |
Characteristics of electromagnetic wave propagating through ionosphere |
| |
| YU Chao,SHEN Guozhu,GU Bin and CHENG Guosheng.Characteristics of electromagnetic wave propagating through ionosphere[J].Journal of Nanjing Institute of Meteorology,2013,5(4):379-384. |
| |
| Authors: | YU Chao SHEN Guozhu GU Bin and CHENG Guosheng |
| |
| Institution: | School of Physics & Opto-electronic Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;School of Physics & Opto-electronic Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;School of Physics & Opto-electronic Engineering,Nanjing University of Information Science & Technology,Nanjing 210044;School of Physics & Opto-electronic Engineering,Nanjing University of Information Science & Technology,Nanjing 210044 |
| |
| Abstract: | Refraction is the main characteristic when electromagnetic wave propagates through ionosphere,which is mainly determined by the free electrons in ionosphere.In this paper the relationship between the refractive index(n),the electron concentration(Ne) and the altitude(h) is analyzed,and numerical simulations are taken on the refractive index and the electron concentration relating to the altitude.We contrast the simulated altitudinal profile of critical frequency and the actual altitudinal profile of critical frequency,and the results show that at high ionosphere,the simulations are roughly in agreement with the actual measurements,while at the lower ionosphere the simulations deviate from the measurements by reason of nonlinear relationship and existence of Es layer. |
| |
| Keywords: | electromagnetic wave ionosphere refractive index electron concentration numerical simulations |
|
| 点击此处可从《南京气象学院学报》浏览原始摘要信息 |
| 点击此处可从《南京气象学院学报》下载免费的PDF全文 |
|
