| 任意角入射到非均匀等离子体的WKB法 |
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| 引用本文： | 夏新仁,尹成友,金贤龙,王守杰.任意角入射到非均匀等离子体的WKB法[J].上海航天,2009,26(3):18-20. |
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| 作者姓名： | 夏新仁 尹成友 金贤龙 王守杰 |
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| 作者单位： | 1. 合肥电子工程学院,安徽,合肥,230037
2. 空军驻合肥地区军事代表室,安徽,合肥,230000 |
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| 摘 要： | 用WKB法研究了以任意角入射的电磁波在非均匀非磁化等离子体中的衰减特性，给出了电磁波在非均匀非磁化等离子体中的双程衰减公式。选用抛物线型等离子体密度分布进行计算，基于等离子体共振吸收概念分析了双程衰减与入射电磁波频率、等离子体碰撞频率、等离子体最大密度和电磁波入射角等的关系。对等离子体隐身研究有一定的参考价值。
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| 关 键 词： | 任意角入射 非均匀 非磁化 等离子体 隐身 |
The WKB Method of Random Incident Electromagnetic Wave to Nonuniform Plasma |
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| XIA Xin-ren,YIN Cheng-you,JIN Xian-long,WANG Shou-jie.The WKB Method of Random Incident Electromagnetic Wave to Nonuniform Plasma[J].Aerospace Shanghai,2009,26(3):18-20. |
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| Authors: | XIA Xin-ren YIN Cheng-you JIN Xian-long WANG Shou-jie |
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| Institution: | XIA Xin-ren , YIN Cheng-you , JIN Xian-long , WANG Shou-jie (1. Heifei Electronic Engineering Institute, Hefei Anhui 230037, China; 2. Airforce Military Representative Office of CPLA in Hefei, Hefei Anhui 230000, China) |
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| Abstract: | The attenuation characteristic of electromagnetic waves at an arbitrary angle of incidence by a non-uniform unmagnetized plasma was studied by using WKB method in this paper. The double-pass attenuation formula of electromagnetic waves passing non-uniform unmagnetized was given, the non-uniform plasma density of parabolic profile was selected as an example. Based on considering the concept of resonant reduction, the relationships of the double-pass attenuation of electromagnetic waves with the electromagnetic wave frequencies, the plasma collision frequencies, the maximum plasma density and the angle of incidence were analyzed by comparing. The study was valuabe for implementing plasma stealth. |
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| Keywords: | Random incident Non-uniform Unmagnified Plasma Stealth |
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