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气泡/泡沫覆盖粗糙海面电磁散射的修正双尺度法研究
  • 期刊名称：物理学报(有录用通知)
  • 时间：0
  • 分类：O472.1[理学—半导体物理;理学—物理] V228.7[航空宇航科学与技术—飞行器设计;航空宇航科学技术]
  • 作者机构：[1]西安电子科技大学理学院,西安710071
  • 相关基金：国家自然科学基金（批准号：60571058）和高等学校博士学科点专项科研基金（批准号：20070701010）资助的课题.
  • 相关项目：实际海背景中目标的复合电磁散射与预报模型研究
关键词： 电磁散射, 海面复合模型, 修正双尺度法, MIE, electromagnetic scattering, composite model of sea surface, modified two-scale method, MIE
中文摘要：

提出了风驱粗糙海面覆盖水气泡层的‘体-面’复合模型.基于修正的双尺度粗糙面散射理论、MIE理论和矢量辐射传输理论,比较了水气泡与实心水粒子的电磁散射特性的差异,分析了海面泡沫覆盖率与风速、气-海温差的关系.在有、无泡沫层情形下,采用高斯和经验海谱,讨论了单站、双站散射系数与入射角、方位角、风速、风向、极化等参量的关系,并将数值计算的结果与相关文献的测量值进行了比较和分析.

英文摘要：

A volume-surface composite model of rough sea surfaces with water bubble layer driven by wind is presented in this paper. Based on the modified two-scale rough surface scattering theory, MIE theory and VRT （vector radiative transfer） theory, the difference of electromagnetic scattering properties of the water bubbles compared with those of water particles is investigated. The relations between the foam coverage of the sea surface and wind speed and air-sea temperature difference are analyzed. The dependence of back- and bistatic-scattering coefficient of Gaussian rough surface and empirical sea surface with/without foam layer on the incident and azimuthal angle, the wind speed, the wind direction, as well as the polarization are discussed in detail. The results of numerical simulations are analyzed and compared with the measured data from the relevant references.

同期刊论文项目
实际海背景中目标的复合电磁散射与预报模型研究
期刊论文 71 会议论文 19 获奖 1
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