[3] Boric Zeljko, Markovic Branko. Telecommunications Forum, 2012: 544.

[8] Hwang Dusun, Seo Daecheo, Kwon Ilbum, et al. Sensors, 2012, 9(12): 12836.

[9] Jiang Biqiang, Zhao Jianlin, Qin Chuan. Optics and Lasers in Engineering, 2011, 3(49): 415.

[10] Taki M, Nannipieri T, Zaidi F, et al. Electronics Letters, 2012, 24(48): 1548.

[12] Shen Chanyu, Zhong Chuan. Sensors and Actuators A-Physical, 2011, 1－2(170): 51.

[13] Larry A Coldren, Scott W Corzine. Beijing University of Posts and Telecommunications Press, 2006. 377.