| 释放SF_6气体改变电离层电子密度的实验研究 |
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| 引用本文： | 冯桃君,姜利祥,黄建国,刘国青.释放SF_6气体改变电离层电子密度的实验研究[J].航天器环境工程,2015,32(6):612-615. |
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| 作者姓名： | 冯桃君 姜利祥 黄建国 刘国青 |
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| 作者单位： | 北京卫星环境工程研究所, 北京 100094;北京卫星环境工程研究所, 北京 100094;北京卫星环境工程研究所 可靠性与环境工程技术重点实验室, 北京 100094;北京卫星环境工程研究所, 北京 100094;北京卫星环境工程研究所 可靠性与环境工程技术重点实验室, 北京 100094;北京卫星环境工程研究所, 北京 100094;北京卫星环境工程研究所 可靠性与环境工程技术重点实验室, 北京 100094 |
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| 摘 要： | 电离层受到自然或人工扰动后产生的电子密度变化会影响无线电的传播。实验模拟了人工释放SF_6气体扰动电离层,通过对SF_6气体在电离层中的扩散过程和相应的离子化学反应的分析,并结合实验测量,研究了电离层电子密度随SF_6气体释放量的变化规律。实验结果表明:SF_6气体在电离层高度释放后,电子密度显著减少,且减少量与气体释放量在一定范围内呈负指数关系。研究可为今后提高卫星通信保密性和实施通信干扰等应用提供理论依据。
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| 关 键 词： | SF6气体释放 电离层 电子密度 电离层扰动 离子化学反应 |
| 收稿时间： | 2015/1/19 0:00:00 |
| 修稿时间： | 2015/11/27 0:00:00 |
Experimental study of modification of ionospheric electron density by SF6 gas release |
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| Feng Taojun,Jiang Lixiang,Huang Jianguo and Liu Guoqing.Experimental study of modification of ionospheric electron density by SF6 gas release[J].Spacecraft Environment Engineering,2015,32(6):612-615. |
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| Authors: | Feng Taojun Jiang Lixiang Huang Jianguo and Liu Guoqing |
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| Institution: | Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China |
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| Abstract: | The change of the electron density in the ionosphere due to the natural or artificial disturbances would influence the propagation of the electronic waves. In this paper, the ionospheric perturbation by the artificial SF6 gas release is simulated. In terms of the diffusion process of the SF6 gas and the relevant ion-chemistry reactions in the ionosphere together with experimental measurements, the density of the ionospheric electron varied with the mass flux of the SF6 gas released is determined. The results show that the depletion of the ionospheric electron density is remarkable after the release of the SF6 gas, and the electron density decreases exponentially with the SF6 gas flux released to some extent. The results can provide some guidance for future theoretical studies for enhancing satellite communication safety and implementing communication interference. |
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| Keywords: | SF6 gas release ionosphere electron density ionospheric disturbance ion-chemistry reactions |
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