| 二维各向同性均匀随机介质中平面波的传播及其局域性 |
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| 引用本文： | 丁锐,王志良,小仓久直.二维各向同性均匀随机介质中平面波的传播及其局域性[J].物理学报,2008,57(9):5519-5528. |
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| 作者姓名： | 丁锐 王志良 小仓久直 |
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| 作者单位： | 复旦大学波散射与遥感信息教育部重点实验室，上海 200433 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 讨论了二维各向同性均匀随机介质中平面波的传播及其局域性.假设二维随机介质具有各向同性窄带高斯谱，运用随机泛函理论给出了二维介质中随机平面驻波的解析近似解及其幅度和相位的定量统计特性.计算结果证实了波在随机介质中传播时的局域性.将二维介质中的平面波和柱面波的传播特性作了对比.数值结果模拟了二维随机介质场及平面驻波，并验证了本文结果的正确性.
关键词：
随机介质
随机泛函
平面波
局域性
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| 关 键 词： | 随机介质 随机泛函 平面波 局域性 |
| 收稿时间： | 2007-11-27 |
Propagation and localization of plane waves in two-dimensional homogeneous and isotropic random medium |
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| Ding Rui,Wang Zhi-Liang,Hisanao Ogura.Propagation and localization of plane waves in two-dimensional homogeneous and isotropic random medium[J].Acta Physica Sinica,2008,57(9):5519-5528. |
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| Authors: | Ding Rui Wang Zhi-Liang Hisanao Ogura |
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| Abstract: | Propagation and localization of plane waves in two-dimensional homogeneous and isotropic random medium is studied. The approximate stochastic solution of the plane wave and the propagation behaviors are obtained by means of stochastic functional approach. The results verify the phenomenon of localization of waves in random medium. The agreements between the theory and the computer simulations are shown to be satisfactory in spite of the use of approximate theoretical formulas. |
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| Keywords: | random medium stochastic functional approach plane wave localization |
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