| 再入等离子体鞘套中电磁波Helmholtz方程的近似解 |
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| 引用本文： | 冯林.再入等离子体鞘套中电磁波Helmholtz方程的近似解[J].电子科技大学学报(社会科学版),1987(2). |
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| 作者姓名： | 冯林 |
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| 摘 要： | 本文以样条函数(spline function)作为电磁波Helmholtz方程的近似解,求解了等离子体鞘套的反射系数和透射系数。本文采用的样条函数法具有数学推导和数字计算简单,可适用于任意电子浓度分布的优点,并且计算结果与美国RAM C系列飞行实测数据吻合得比较好。同时,本方法还可用于求解其它不均匀介质中的电波传播问题。
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| 关 键 词： | 再入等离子体鞘套 反射系数 透射系数 样条函数 电子浓度 电磁波传播 |
AN APPROXIMATE SOLUTION TO THE ELECTROMAGNETIC HELMHOLTZ'S EQUATION IN REENTRY PLASMA SHEATH |
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| Feng Lin.AN APPROXIMATE SOLUTION TO THE ELECTROMAGNETIC HELMHOLTZ''''S EQUATION IN REENTRY PLASMA SHEATH[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1987(2). |
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| Authors: | Feng Lin |
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| Abstract: | Spline function is introduced as an approximate solulion to the electromagnetic elmhohz's equation in reentry plasma sheath, and the reflection and transmission coefficients of electromagnetic waves are calculated. The advantages of the spline function method are:the mathematic deduction is simple, the numerical calculation is very easy, and the method used in this paper is applicable to any of the plasma sheaths which have arbitrary electron density profiles. The numerical results of the paper agree with the data measured by RAM C flights. The method can be also used to study the propagation of the electromagnetic waves through other inhomgeneous media. |
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| Keywords: | reentry plasma sheath reflection coefficient transmission cocfficient spline function electron concentration electromagnetic waves propagation |
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