| 圆柱面波的复惠更斯源展开 |
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| 引用本文： | 阮颖铮.圆柱面波的复惠更斯源展开[J].光学学报,1988(1). |
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| 作者姓名： | 阮颖铮 |
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| 作者单位： | 成都电讯工程学院 |
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| 摘 要： | 本文提出一种分析波场问题的新方法——复惠更斯源展开法,它用具有复数坐标的次波源代替普通的次波源,根据复射线理论求解各次波源的贡献,并按叠加原理而构成初波源的场.文中讨论了二维波场的这种展开.只要适当选择展开参量,该方法相对于严格理论解的误差不大于1%.
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| 关 键 词： | 复射线追踪 近轴近似 波的展开 惠更斯——菲涅耳原理 |
Complex Huygens wavelet expansion and its parameter selection |
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| RUAN YINGZHENG.Complex Huygens wavelet expansion and its parameter selection[J].Acta Optica Sinica,1988(1). |
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| Authors: | RUAN YINGZHENG |
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| Institution: | Chengdu Institute of Radio Engineering |
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| Abstract: | A new method for analysis and evaluation of wave fields, complex Huygens wavelet expansion, is presented, which replaces the coventional Huygens wavelet bya secondary source with complex coordinates, evaluates the field from each wavelet by complex ray theory, and superposes the individual contributions to construct the wavefield from the primary source. The method of this expansion is illustrated. In comparison with exact reference solution, the error of the method is less than 1%, provided that the expansion parameters are properly chosen. |
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| Keywords: | complex ray tracing paraxial approximation wave expansion huygens'principle On the complex Huygens expansion for cylindrical wavelets |
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