基于辐射传输理论的沙层电磁散射特性分析

›› 2014, Vol. 27 ›› Issue (1): 67-.

基于辐射传输理论的沙层电磁散射特性分析

李彦良,阳松,邓泽怀

(西安电子科技大学理学院,陕西西安 710071)

出版日期:2014-01-15 发布日期:2014-01-12
作者简介:李彦良(1990—),男,硕士研究生。研究方向:电磁波传播与散射。E-mail:07073016@163.com。阳松(1989—),男,硕士研究生。研究方向:微波技术,天线建模与电磁仿真。邓泽怀(1989—),男,硕士研究生。研究方向:电磁波散射。

Electromagnetic Scattering Analysis of Sand Layer Based on the Radiative Transfer Theory

LI Yan-Liang, YANG Song, DENG Ze-Huan

(School of Science,Xidian University,Xi'an 710071,China)

Online:2014-01-15 Published:2014-01-12

摘要/Abstract

摘要：

针对沙粒层的面散射以及体散射,利用小斜率近似(SSA)方法研究了其面散射,将其计算结果和文献中相应测量数据进行比较分析。随后基于辐射传输理论(RT)研究了其体散射特性,将其计算结果与文献中相应的测量数据进行比较分析,通过这两部分结果的比较验证了文中所述方法的有效性。

关键词: 磁散射, 沙地, 辐射传输理论

Abstract:

Both surface scattering and volume scattering of sand layer are discussed in this paper.We study the former one with the small slope approximation (SSA) and the later one based on the radiate transfer (RT) theory,and compare the both results with those in the previous researches.The validity of the methods is suggested by the comparisons.

Key words: electromagnetic scattering;sand layer;the radiate transfer theory

中图分类号:

O441

李彦良, 阳松, 邓泽怀. 基于辐射传输理论的沙层电磁散射特性分析[J]. , 2014, 27(1): 67-.

LI Yan-Liang, YANG Song, DENG Ze-Huan. Electromagnetic Scattering Analysis of Sand Layer Based on the Radiative Transfer Theory[J]. , 2014, 27(1): 67-.

参考文献

［1］SLETTEN M A,TRIZNA D B,HANSEN J P.Ultrawide-band radar observations of multipath propagation over the sea surface［J］.IEEE Transaction on Antennas and Propagation,1996,44(5):646-651.

［2］宋月霞,张民,吴振森,等.双层植被电磁散射模型分析及实验对比［J］.西安电子科技大学学报:自然科学版,2003,30(3):410-414.

［3］SARABANDI K,LI E S,NASHASHIBI A.Modeling and measurements of scattering from road surfaces at millimeter-wave frequencies［J］.IEEE Transactions on Antennas and Propagation,1997,45(11):1679-1688.

［4］何清,徐俊荣.塔克拉玛干沙漠散射辐射观测研究［J］.干旱区地理,1996,19(4):38-44.

［5］NASHASHIBI A Y,SARABANDI K,AL-ZAID F A,et al.Characterization of radar backscatter response of sand-covered surfaces at millimeter-wave frequencies［J］.IEEE Transactions on Geoscience and Remote Sensing,2012,50(6):2345-2354.

［6］HUA L,TIAN Y,CHEN P,et al.Study on the energy conservation of the small perturbation method［C］.Harbin:Cross Strait Quad-Regional Radio Science and Wireless Technology Conference,2011.

［7］金亚秋.随机粗糙面上后向散射的增强［J］.物理学报,1989,38(10):1611-1620.

［8］杨超,郭立新.高斯介质粗糙面电磁散射的小斜率近似方法［J］.电波科学学报,2009,24(1):77-82.

［9］WEN B,TSANG L,WINEBRENNER D P,et al.Dense medium radiative transfer theory:comparison with experiment and application to microwave remote sensing and polarimetry［J］.IEEE Transactions on Geoscience and Remote Sensing,1990,28(1):46-59.

［10］NASHASHIBI A Y,SARABANDI K,AL-ZAID F A,et al.An empirical model of volume scattering from dry sand-covered surfaces at millimeter-wave frequencies［J］.IEEE Transactions on Geoscience and Remote Sensing,2012(99):1-10.