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題名 | 動差法對拋物面體凸面區後向散射場之研究分析 |
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作者姓名(中文) | 蔡蕙逢; 柏小松; 楊臺麟; | 書刊名 | 中正嶺學報 |
卷期 | 23:1 1994.07[民83.07] |
頁次 | 頁45-54 |
分類號 | 448.811 |
關鍵詞 | 拋物面體; 磁場積分方程式; 動差法; 點匹配; Circular paraboloid; Magnetic field integral equations; Moment method; Point match; |
語文 | 中文(Chinese) |
中文摘要 | 拋物曲體乃研究雷達截面積重要基本形狀之一.本文提出如何以動差 法結合點匹配技巧求解完全導電拋面體凸面區之電磁摸波後向散射(EM wave backscattering.。並以實驗求證結果之準確度,文內分別從改變拋物面體分割區格 大小及照射頻率高低,觀察對結果之影響,同時比較幾何繞射理論之預測值,最 後並針對拋物面體凸面區求解後向散射提出研究結論。 |
英文摘要 | The shape of circular paraboloid is one of many important elementary geometries on studyingRadar Cross Section (RCS). This paper shows the backscattering of perfectly conducted convex portionof circular paraboloid by using moment method with point match technique, and also examines thematch degree compared with calculation and experiment. Result from the changes of grid size on theapproximation of point match and from the change of frequencies on plane wave illumination arediscussed separately. The predictive resolutions calculated by Geometric Theory of Diffraction (GTD)approximation are also referred in comparisons. Some conclusions for good approximating the back-scattering of this convex portion of circular paraboloid are proposed. |
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