| 无线电波在再入等离子体中传输的衰减模型及仿真验证 |
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| 作者姓名： | 钟育民 谌明 卢满宏 李艳华 |
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| 作者单位： | 北京遥测技术研究所; |
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| 摘 要： | 简要描述再入等离子体的流场特性和等离子体的电特性参数,从平面电磁波在无限大均匀等离子体层的传输出发,推导无线电波在均匀和非均匀等离子体中受到衰减的数学模型。结合美国RAMC飞行试验数据,利用衰减模型计算了25km~75km高度上信号的衰减值,通过与美国RAMC飞行试验结论的对比,验证了衰减模型的正确性。
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| 关 键 词： | 再入 等离子体 衰减模型 RAMC |
Attenuation Model and Simulation Validation of Electromagnetic Wave Transmission in Reentry Plasma |
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| Authors: | Zhong Yumin Chen Ming Lu Manhong Li Yanhua |
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| Abstract: | This paper describes the characteristics of flow field and electrical characteristic parameter of reentry plasma.Based on the principle of plane electromagnetic wave transmission in homogeneous plasma slab,the mathematical models of attenuation of plane electromagnetic wave transmission in homogeneous and inhomogeneous plasma slab are derived.With the data of flight experiments in RAMC and the proposed models,the attenuation at the altitude from 25km to 75km is calculated.The calculation results coincide wi... |
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| Keywords: | Reentry Plasma Attenuation model RAMC |
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