Frequency drifts characteristics for electromagnetic wave in Suddenly Creation Plasma
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摘要: 推导一维瞬变磁化等离子体的时域有限差分(FDTD)递推式,并以一维金属谐振腔作为计算模型,分析了瞬变等离子体中电磁波频率漂移特性。从理论分析出发,得到了一维瞬变等离子体对电磁波作用的解析解。通过选取相同的模型和参数,将FDTD数值解与解析解进行对比, 验证了所用FDTD方法的准确性,在此基础上研究了瞬变等离子体中电磁波的频率漂移规律。
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关键词:
- 时域有限差分(FDTD)方法 /
- 瞬变等离子体 /
- 频率漂移
Abstract: The finite difference time domain (FDTD) iterative formula under the condition of one-dimensional transient magnetized plasma are deduced. Based on the metal cavity model, the frequency drift characteristics for electromagnetic wave in transient plasma are analyzed. The analytical solution is also given according to the electromagnetic wave theory. By comparing the FDTD numerical solution with analytical solution, the accuracy of the FDTD method is venified, and the frequency drifts rules for electromagnetic wave in transient plasma are obtained.-
Keywords:
- FDTD /
- transient plasma /
- frequency drift
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