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The scattering of the radar signal by the coated target of a rough surface in the terahertz wave is studied. Considering the roughness of the surface, reflection coefficient is modified for the rough surface. The modified equivalent current can be obtained by using the reflection coefficient. Then using the modified equivalent current and the physical optics solution, the radar cross section of the coated object with the rough surface is obtained. And combining the graphical electromagnetic computing method, simulations to validate the formulation are performed. Numerical results for several coated bodies such as cylinder and cone-sphere geometry are given and discussed from different angles of incidence, different frequencies, different materials, different roughness values, and different coating thickness values.
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Keywords:
- terahertz /
- radar cross section /
- roughness /
- coating
[1] Feng W, Zhang R, Cao J C 2013 Physics 42 846 (in Chinese) [冯伟, 张戎, 曹俊诚 2013 物理 42 846]
[2] Kolbehdari M A 1994 Microwaves, Antennas and Propagation 141 536
[3] Wang L, Zhong Y C, Zhang K Y 2012 Acta Phys. Sin. 61 234101 (in Chinese) [王龙, 钟易成, 张堃元 2012 61 234101]
[4] Li X F, Xie Y J, Wang P, Yang R 2008 Acta Phys. Sin. 57 2930 (in Chinese) [李晓峰, 谢拥军, 王鹏, 杨锐 2008 57 2930]
[5] Meana J G, Martinez-Lorenzo J A, Las-Heras F 2011 Electromagnetic Waves Propagation in Complex Matter (Rijeka: InTech) p207
[6] Meana J G, Martinez-Lorenzo J A, Las-Heras F, Rappaport C 2010 Antennas and Propagation 58 3757
[7] Yin H C, Huang P K, Liu X G, Guo H P 2003 J. Syst. Engineer. Electron. 14 1
[8] Wang A Q, Guo L X, Chai C 2011 Chin. Phys. B 20 050202
[9] Herrmann M, Wiegand C, Jonuscheit J, Beigang R 2009 Infrared, Millimeter,Terahertz Waves Busan, September 21-25 2009 p1
[10] Yang H H, Cao X Y, Gao J, Liu T, Li S J, Zhao Y, Yuan Z D, Zhang H 2013 Acta Phys. Sin. 62 214101 (in Chinese) [杨欢欢, 曹祥玉, 高军, 刘涛, 李思佳, 赵一, 袁子东, 张浩 2013 62 214101]
[11] Booth K S, Forsey D R, Paeth A W 1986 Comput. Graph. Appl. 6 31
[12] Rius J M, Ferrando M, Jofre L 1993 Trans. Antenn. Propag. 41 1308
[13] L D, Tong C M, Gao Y, Su M 2008 Syst. Engineer. Electron. 30 1024 (in Chinese) [吕丹, 童创明, 高阳, 苏敏 2008 系统工程与电子技术 30 1024]
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[1] Feng W, Zhang R, Cao J C 2013 Physics 42 846 (in Chinese) [冯伟, 张戎, 曹俊诚 2013 物理 42 846]
[2] Kolbehdari M A 1994 Microwaves, Antennas and Propagation 141 536
[3] Wang L, Zhong Y C, Zhang K Y 2012 Acta Phys. Sin. 61 234101 (in Chinese) [王龙, 钟易成, 张堃元 2012 61 234101]
[4] Li X F, Xie Y J, Wang P, Yang R 2008 Acta Phys. Sin. 57 2930 (in Chinese) [李晓峰, 谢拥军, 王鹏, 杨锐 2008 57 2930]
[5] Meana J G, Martinez-Lorenzo J A, Las-Heras F 2011 Electromagnetic Waves Propagation in Complex Matter (Rijeka: InTech) p207
[6] Meana J G, Martinez-Lorenzo J A, Las-Heras F, Rappaport C 2010 Antennas and Propagation 58 3757
[7] Yin H C, Huang P K, Liu X G, Guo H P 2003 J. Syst. Engineer. Electron. 14 1
[8] Wang A Q, Guo L X, Chai C 2011 Chin. Phys. B 20 050202
[9] Herrmann M, Wiegand C, Jonuscheit J, Beigang R 2009 Infrared, Millimeter,Terahertz Waves Busan, September 21-25 2009 p1
[10] Yang H H, Cao X Y, Gao J, Liu T, Li S J, Zhao Y, Yuan Z D, Zhang H 2013 Acta Phys. Sin. 62 214101 (in Chinese) [杨欢欢, 曹祥玉, 高军, 刘涛, 李思佳, 赵一, 袁子东, 张浩 2013 62 214101]
[11] Booth K S, Forsey D R, Paeth A W 1986 Comput. Graph. Appl. 6 31
[12] Rius J M, Ferrando M, Jofre L 1993 Trans. Antenn. Propag. 41 1308
[13] L D, Tong C M, Gao Y, Su M 2008 Syst. Engineer. Electron. 30 1024 (in Chinese) [吕丹, 童创明, 高阳, 苏敏 2008 系统工程与电子技术 30 1024]
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