[1] Wang Y M, Chew W C 1989 Int. J. Imaging Syst. Technol. 1 100
[2] Chew W C, Wang Y M 1990 IEEE Trans. Med. Imaging 9 218
[3] Yu W H, Peng Z Q, Ren L 1995 J. Microw. 11 97 (in Chinese) [余文华, 彭仲秋, 任朗 1995 微波学报 11 97]
[4] Nie Z P, Zhang Y R 1998 IEEE Trans. Geosci. Remote Sens. 36 749
[5] Takenaka T, Jia H, Tanaka T 2000 J. Electromagn. Waves Appl. 14 1609
[6] Liu G D, Zhang Y R 2010 Acta Phys. Sin. 59 6969 (in Chinese) [刘广东, 张业荣 2010 物理学报 59 6969]
[7] Ali M A, Moghaddam M 2010 IEEE Trans. Antennas Propag. 58 2327
[8] Mojabi P, LoVetri J 2011 IEEE Trans. Antennas Propag. 59 2954
[9] Wang F F, Zhang Y R 2012 Acta Phys. Sin. 61 084101 (in Chinese) [王芳芳, 张业荣 2012 物理学报 61 084101]
[10] Wang F F, Zhang Y R 2012 Chin. Phys. B 21 050204
[11] Chiu C C, Sun C H, Li C L, Huang C H 2013 IEEE Trans. Geosci. Remote Sens. 51 2302
[12] Ge D B, Yan Y B 2005 Finite-Difference Time-Domain Method for Electromagnetic Waves (2nd ed.) (Xi’an: Xidian University Press) (in Chinese) [葛德彪, 闫玉波 2005 电磁波时域有限差分法(第二版)(西安: 西安电子科技大学出版社)]
[13] Gennarelli G, Soldovieri F 2013 IEEE Geosci. Remote Sens. Lett. 10 1085
[14] Dai Y H 2003 Math. Comput. 17 1317
[15] Abubakar A, Habashy T, Druskin V, Knizhnerman L, Alumbaugh D 2008 Geophysics 73 165
[16] Liu G D, Zhang Y R 2011 Acta Phys. Sin. 60 074303 (in Chinese) [刘广东, 张业荣 2011 物理学报 60 074303]
[17] Xiao X, Xu L, Liu B Y 2013 Acta Phys. Sin. 62 044105 (in Chinese) [肖夏, 徐立, 刘冰雨 2013 物理学报 62 044105]
[18] Shahzad A, O’Halloran M, Jones E, Glavin M 2013 IEEE Trans. Antennas Wireless Propag. Lett. 12 500