| 太赫兹通信解决黑障问题的探讨与分析 |
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| 作者姓名： | 钟育民 李艳华 |
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| 作者单位： | 北京遥测技术研究所;中国航天电子技术研究院 |
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| 摘 要： | 从电磁波在等离子体中传输的机理出发,分析电磁波在等离子体中传输的衰减模型。以我国载人飞船为例,分析电磁波在等离子体中传输的衰减,指出采用太赫兹波段可以使衰减控制在3dB以下。为了解决太赫兹波在大气传输中损耗过大的问题,提出一种基于中继转发的太赫兹通信系统方案,并给出系统总体设计、频率选择和通视距离计算结果。指出系统设计的关键技术,给出相应的解决方法。最后,分析系统工程应用的主要难点。
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| 关 键 词： | 黑障 等离子体鞘套 太赫兹通信 |
Discussion and Analysis of Terahertz Communication for Blackout Elimination |
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| Authors: | Zhong Yumin Li Yanhua |
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| Institution: | (Beijing Research Institute of Telemetry, Beijing 100094, China;China Academy of Aerospace Electronics Technology, Beijing 100094, China) |
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| Abstract: | Based on the mechanism of electromagnetic wave propagation in plasma, the attenuation model of electromagnetic wave propagation in plasma is analyzed. Taking the manned spacecraft in China as an example, the attenuation of electromagnetic wave propagation in plasma is analyzed. It is pointed out that the attenuation can be controlled below 3 d B by using terahertz communication. In order to solve the problem of excessive loss of terahertz wave in atmospheric transmission, a scheme of terahertz communication system based on relay forwarding is proposed, and the overall design of the system, frequency selection and calculation results of visibility distance are given. The key technologies of system design are pointed out, and the corresponding solutions are given. Finally, the main difficulties of system engineering application are analyzed. |
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| Keywords: | Blackout Plasma Sheath Terahertz Communication |
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