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The dielectric properties of the actual land surface and snow deposit are described using the four-component model of dielectric constant of soil and the dielectric constant model of snow respectively. The actual rough land surface is simulated with the model of exponential type distribution rough surface and Monte Carlo method, the composite electromagnetic scatterings from the rough land surface covered with snow and the column with rectangular cross-section above it are studied using the finite-difference time-domain method, the curves of angular distribution of composite scattering coefficient are obtained, the bistatic composite scattering coefficient varying with the roughness parameter and dielectric parameter of soil and snow, the geometric parameter and dielectric parameter of the column with rectangular cross-section are calculated in detail. The characteristics of the composite scattering coefficient from rough land surface covered with snow and the column with rectangular cross-section above it are also obtained.
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Keywords:
- finite difference time domain /
- electromagnetic scattering /
- rough land surface /
- column with rectangular cross-section
[1] Shenawee M E, Carey Rappaport, Miller E L, Silevitch M B 2011 IEEE Trans. Geosci. Remote Sensing 39 1174
[2] Shenawee M E 2004 IEEE Trans. Geosci. Remote Sensing 42 67
[3] Li L 2003 IEEE Trans. Antennas Propagat. 51 810
[4] Ye H X, Jin Y Q 2006 IEEE Trans. Geosci. Remote Sensing 44 108
[5] Guo L X, Wang R, Wang Y H, Wu Z S 2008 Chinese J. Geophys. 51 1695 (in Chinese) [郭立新, 王蕊, 王运华, 吴振森 2008 地球 51 1695]
[6] Wang R, Guo L X, Wang A Q 2010 Acta Phys. Sin. 59 3179 (in Chinese) [王蕊, 郭立新, 王安琪 2010 59 3179]
[7] Ji W J, Tong C M 2010 Chinese J. Radio Sci. 25 336 (in Chinese) [姬伟杰, 童创明 2010 电波科学学报 25 336]
[8] Hasting F D, Schneider J B, Broschat S L 1995 IEEE Trans. Antennas Propagat. 43 1183
[9] Wang J R, Schmugge T J 1980 IEEE Trans. Geosci. Remote Sensing 18 288
[10] Li D X 1994 Method and Application of Ground Penetrating Radar (1st Ed.) (Beijing: Geology Publishing House) p156 (in Chinese) [李大心 1994 探地雷达方法与应用(北京: 地质出版社) 第156页]
[11] Ge D B, Yan Y B 2005 Finite-Different Time-Domain for Electromagnetic Waves (2nd Ed.) (Xi'an: Xidian University Press) p158 (in Chinese) [葛德彪, 闫玉波 电磁波时域有限差分方法(第二版) (西安: 西安电子科技大学出版社) 第158页]
[12] Sacks Z S 1995 IEEE Trans. Antennas Propagat. 43 1460
[13] Gedney S D 1996 Electromagnetics 16 425
[14] Berenger J P 1994 J. Comput. Phys. 114 185
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[1] Shenawee M E, Carey Rappaport, Miller E L, Silevitch M B 2011 IEEE Trans. Geosci. Remote Sensing 39 1174
[2] Shenawee M E 2004 IEEE Trans. Geosci. Remote Sensing 42 67
[3] Li L 2003 IEEE Trans. Antennas Propagat. 51 810
[4] Ye H X, Jin Y Q 2006 IEEE Trans. Geosci. Remote Sensing 44 108
[5] Guo L X, Wang R, Wang Y H, Wu Z S 2008 Chinese J. Geophys. 51 1695 (in Chinese) [郭立新, 王蕊, 王运华, 吴振森 2008 地球 51 1695]
[6] Wang R, Guo L X, Wang A Q 2010 Acta Phys. Sin. 59 3179 (in Chinese) [王蕊, 郭立新, 王安琪 2010 59 3179]
[7] Ji W J, Tong C M 2010 Chinese J. Radio Sci. 25 336 (in Chinese) [姬伟杰, 童创明 2010 电波科学学报 25 336]
[8] Hasting F D, Schneider J B, Broschat S L 1995 IEEE Trans. Antennas Propagat. 43 1183
[9] Wang J R, Schmugge T J 1980 IEEE Trans. Geosci. Remote Sensing 18 288
[10] Li D X 1994 Method and Application of Ground Penetrating Radar (1st Ed.) (Beijing: Geology Publishing House) p156 (in Chinese) [李大心 1994 探地雷达方法与应用(北京: 地质出版社) 第156页]
[11] Ge D B, Yan Y B 2005 Finite-Different Time-Domain for Electromagnetic Waves (2nd Ed.) (Xi'an: Xidian University Press) p158 (in Chinese) [葛德彪, 闫玉波 电磁波时域有限差分方法(第二版) (西安: 西安电子科技大学出版社) 第158页]
[12] Sacks Z S 1995 IEEE Trans. Antennas Propagat. 43 1460
[13] Gedney S D 1996 Electromagnetics 16 425
[14] Berenger J P 1994 J. Comput. Phys. 114 185
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