国家自然科学基金(40906088)

作品数:5被引量:5H指数:1
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相关作者:张彦敏王运华姜文正袁业立郭立新更多>>
相关机构:中国海洋大学国家海洋局第一海洋研究所中国科学院中国科学院研究生院更多>>
相关期刊:《Chinese Physics B》《物理学报》更多>>
相关主题:SEA_SURFACE电磁散射ELECTROMAGNETIC_SCATTERINGSLOPE多普勒谱更多>>
相关领域:理学电子电信机械工程更多>>
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海面微波散射场多普勒谱特性研究被引量:4
《物理学报》2012年第12期310-318,共9页姜文正 袁业立 王运华 张彦敏 
国家自然科学基金青年基金(批准号:40906088);教育部博士点基金(批准号:200804231021)资助的课题~~
基于粗糙面电磁散射双尺度模型推导给出了海面微波散射场多普勒谱频移和谱宽的理论公式,在该理论公式的推导过程中同时考虑了大尺度海浪的倾斜调制、遮蔽效应和曲率修正效应等因素的影响.文中将理论公式计算结果与精确数值结果进行了比...
关键词:动态海面 电磁散射 多普勒谱 
两相邻有限长圆柱的复合电磁散射研究被引量:1
《物理学报》2011年第2期184-191,共8页王运华 张彦敏 郭立新 
国家自然科学基金青年科学基金(批准号:40906088);国家自然科学基金(批准号:60971067);高等学校博士学科点专项科研基金(批准号:200804231021)资助的课题~~
基于等效定理和互易性原理研究了两相邻有限长介质圆柱的复合电磁散射问题,推导出该复合散射场的二阶散射场计算公式.将公式所得结果与矩量法结果进行了比较,并分析了两柱距离、圆柱长度和极化状态等参量对复合散射场的影响.
关键词:等效定理 互易性原理 电磁散射 有限长圆柱 
Microwave Doppler spectra of sea return at small incidence angles:specular point scattering contribution
《Chinese Physics B》2010年第8期384-390,共7页张彦敏 王运华 赵朝方 
Project supported by the Young Scientists Fund of the National Natural Science Foundation of China(Grant No.40906088);the Specialized Research Fund for the Doctoral Program of Higher Education,China(Grant No.200804231021)
It is well known that the sea return echo contains contributions from at least two scattering mechanisms. In addition to the resonant Bragg scattering, the specular point scattering plays an important role as the inci...
关键词:Doppler spectrum specular point scattering sea surface Kirchhoff approximation 
Investigation on the Doppler shifts induced by 1-D ocean surface wave displacements by the first order small slope approximation theory:comparison of hydrodynamic models
《Chinese Physics B》2010年第7期230-237,共8页王运华 张彦敏 郭立新 
supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 40906088);Specialized Research Fund for the Doctoral Program of Higher Education of China
Based on the first order small slope approximation theory (SSA-I) for oceanic surface electromagnetic scattering, this paper predicts the Doppler shifts induced by wave displacements. Theoretical results from three ...
关键词:Doppler shifts sea surface model SSA-I electromagnetic scattering 
Study of scattering from time-varying Gerstners sea surface using second-order small slope approximation
《Chinese Physics B》2010年第5期260-268,共9页张彦敏 王运华 郭立新 
Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 40906088);the National Natural Science Foundation of China (Grant No. 60971067);Specialised Research Fund for the Doctoral Program of Higher Education (Grant No. 200804231021)
Backscattered fields from one-dimensional time-varying Gerstners sea surface are calculated utilising the secondorder small slope approximation. It is well known that spectral properties of the backscattered echoes re...
关键词:Gerstners sea surface electromagnetic scattering Doppler spectra second-order small slope approximation 
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