| IPO-FDTD混合法计算三维复杂腔体的RCS |
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| 引用本文： | 顾长青,王璟.IPO-FDTD混合法计算三维复杂腔体的RCS[J].电波科学学报,2003,18(4):385-388. |
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| 作者姓名： | 顾长青 王璟 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,江苏,南京,210016 |
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| 基金项目： | 航空科学基金资助项目(00F52047) |
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| 摘 要： | 运用IPO-FDTD混合法计算三维复杂腔体的电磁散射特性。该方法用物理光学迭代法计算腔体前端的缓变部分，用时域有限差分法计算含有复杂结构的腔体终端。在IPO和FDTD之间场耦合中，通过提取“本底噪声”来提高数值精度。数值结果表明该方法是准确有效的。
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| 关 键 词： | IPO-FDTD混合法 三维复杂腔体 RCS 电磁散射 物理光学迭代法 时域有限差分法 进气道 |
| 文章编号： | 1005-0388(2003)04-0385-04 |
Hybrid IPO-FDTD method for the computation of RCS of the there dimensional complex cavities |
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| GU Chang-qing WANG Jing.Hybrid IPO-FDTD method for the computation of RCS of the there dimensional complex cavities[J].Chinese Journal of Radio Science,2003,18(4):385-388. |
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| Authors: | GU Chang-qing WANG Jing |
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| Abstract: | A hybrid IPO-FDTD method is introduced in this paper. The IPO method is used to treat the front part of the cavity, which is slowly varied, while the FDTD method is used to treat the end part of the cavity, where the complex structure is involved. For the coupling between IPO with FDTD fields, the "background noise" is picked up to improve numerical precision. The numerical results show that this method is precise and high efficient. |
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| Keywords: | iterative physical optics finite-difference time-domain radar cross section modified perfectly matched layer cavity |
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