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Secondary electromagnetic polarimetric scattering from a barchan dune is studied. The secondary polarimetric scattering field from the secondary scattering facet is deduced in the Kirchhoff approximation with the waves reflecting from the first scattering facet based on the Ray-tracing theory. The results show that secondary scattering plays an important role in specific range of angle. The co-polarized backscattering coefficients of the lee slope have a local peak value when the incident angle equals the repose angle. Cross-polarized bistatic coefficient of the lee slope near the backscattering region is enhanced when the incident angle is close to the repose angle. The secondary polarimetric scattering between two dunes in line is especially noticeable. The information about wind field in desert region can be retrieved and analyzed by the results in this paper.
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Keywords:
- barchan dune /
- secondary polarimetric scattering /
- ray tracing /
- repose angle
[1] Parteli E J R, Herrmann H J 2007 Phys. Rev. E 76 041307-1
[2] Le Gall A, Hayes A G, Ewing R, Janssen M A, Radebaugh J, Savage C, Encrenaz P 2012 Icarus 217 231
[3] Bagnold R A 1941 The Physics of Blown Sand and Desert Dunes (London: Methuen)
[4] Stephen H, Long D G 2005 IEEE Trans. Geosci. Remote Sens. 43 238
[5] Nashashibi A Y, Sarabandi K, Al-Zaid F A, Alhumaidi S 2012 IEEE Trans. Geosci. Remote Sens. 50 2345
[6] Li Y Z, Shi Q F, Wang Q 2006 Acta Phys. Sin. 55 1119 (in Chinese) [李运周, 史庆藩, 王琪 2006 55 1119]
[7] Liang Z C, Jin Y Q 2003 Acta Phys. Sin. 52 1319 (in Chinese) [梁子长, 金亚秋 2003 52 1319]
[8] Wang X B, Wu Z S, Liang Z C, Zhang Y 2012 Acta Phys. Sin. 61 244105 (in Chinese) [王晓冰, 吴振森, 梁子长, 张元 2012 61 244105]
[9] Karnieli A, Cierniewski J 2001 Adv. Space Res. 28 171
[10] El-Shenawee M, Bahar E 1996 Rev. Proc. Appl. Comput. EM. 1 205
[11] Ishimaru A, Chen J S 1990 J. Acou. Soc. A 88 1877
[12] Yoon K Y, Tateiba M, Uchida K 2001 IEICE Trans. Electron. E84-C 267
[13] Honda J, Uchida K, Yoon K Y 2010 IEICE Trans. Electron. E93-C 39
[14] Bourlier C, Berginc G 2004 Waves Random Media 14 229
[15] Xu F, Jin Y Q 2009 IEEE Trans. Antennas Prop. 57 1495
[16] Miao T D, Mu Q S, Wu S Z 2001 Phys. Lett. A 288 16
[17] Moller T, Trumbore B 1997 J. Graphics Tools 2 109
[18] Ren Y C, Guo L X 2006 Syst. Eng. Electron. Technol. 28 495 (in Chinese) [任玉超, 郭立新 2006 系统工程与电子技术 28 495]
[19] Fornaro G, Serafino F 2006 IEEE Trans. Geosci. Remote Sens. 44 3497
[20] Liu W, Guo L X, Wu Z S 2010 Chin. Phys. B 19 0741021
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[1] Parteli E J R, Herrmann H J 2007 Phys. Rev. E 76 041307-1
[2] Le Gall A, Hayes A G, Ewing R, Janssen M A, Radebaugh J, Savage C, Encrenaz P 2012 Icarus 217 231
[3] Bagnold R A 1941 The Physics of Blown Sand and Desert Dunes (London: Methuen)
[4] Stephen H, Long D G 2005 IEEE Trans. Geosci. Remote Sens. 43 238
[5] Nashashibi A Y, Sarabandi K, Al-Zaid F A, Alhumaidi S 2012 IEEE Trans. Geosci. Remote Sens. 50 2345
[6] Li Y Z, Shi Q F, Wang Q 2006 Acta Phys. Sin. 55 1119 (in Chinese) [李运周, 史庆藩, 王琪 2006 55 1119]
[7] Liang Z C, Jin Y Q 2003 Acta Phys. Sin. 52 1319 (in Chinese) [梁子长, 金亚秋 2003 52 1319]
[8] Wang X B, Wu Z S, Liang Z C, Zhang Y 2012 Acta Phys. Sin. 61 244105 (in Chinese) [王晓冰, 吴振森, 梁子长, 张元 2012 61 244105]
[9] Karnieli A, Cierniewski J 2001 Adv. Space Res. 28 171
[10] El-Shenawee M, Bahar E 1996 Rev. Proc. Appl. Comput. EM. 1 205
[11] Ishimaru A, Chen J S 1990 J. Acou. Soc. A 88 1877
[12] Yoon K Y, Tateiba M, Uchida K 2001 IEICE Trans. Electron. E84-C 267
[13] Honda J, Uchida K, Yoon K Y 2010 IEICE Trans. Electron. E93-C 39
[14] Bourlier C, Berginc G 2004 Waves Random Media 14 229
[15] Xu F, Jin Y Q 2009 IEEE Trans. Antennas Prop. 57 1495
[16] Miao T D, Mu Q S, Wu S Z 2001 Phys. Lett. A 288 16
[17] Moller T, Trumbore B 1997 J. Graphics Tools 2 109
[18] Ren Y C, Guo L X 2006 Syst. Eng. Electron. Technol. 28 495 (in Chinese) [任玉超, 郭立新 2006 系统工程与电子技术 28 495]
[19] Fornaro G, Serafino F 2006 IEEE Trans. Geosci. Remote Sens. 44 3497
[20] Liu W, Guo L X, Wu Z S 2010 Chin. Phys. B 19 0741021
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