[1] G. P. Agrawal. Nonlinear Fiber Optics & Applications of Nonlinear Fiber Optics[M]. Jia Dongfang, Yu Xiahong et al.. Transl. Beijing: Electronic Industry Press, 2002, 3~15
[2] C. Wree, J. Leibrich, J. Eick et al.. Experimental investigation of receiver sensitivity of RZ-DQPSK modulation format using balanced detection[C]. OFC 2003. 2003, Paper ThE5
[4] Bernard Sklar. Digital Communications: Fundamentals and Applications[M]. Xu Pingping Transl. Beijing: Electronic Industry Press, 2002. 103~144
[5] John G.Proakis. Digital Communications[M]. Zhang Lijun, Zheng Baoyu Transl. Beijing: Electronic Industry Press, 2001, 431~508
[6] Mohammad S. Alfiad, Fabian N. Hauske, Huug de Waardt et al.. Maximum-likelihood sequence estimation for optical phase-shift keyed modulation formats[J]. J. Lightwave. Technol., 2009, 27(20): 4583~4594
[7] ToscarE. Agazzi, Mario R. Hueda, Hugo S. Carrer. Maximum-like lihood sequence estimation in dispersive optical channels[J]. JLT, 2005, 23(2): 749~762
[8] Weng Xuan, Zhang Xiaoguang, Xi Lixia et al.. Experimental research of adaptive PMD compensator for 20 Gb/s DQPSK system[J]. Acta Optica Sinica, 2009, 29(2): 175~179
[9] M. Oerder. Digital filter and square timing recovery[J]. IEEE Trans.Commun., 1988, 36(5): 605~612
[10] Michel C. Jeruchim. Techniques for estimating the bit error rate in the simulation of digital communication systems[J]. IEEE Journal on selected areas in Communications, 1984, 2(1): 153~170
[11] Xianming Zhu, Shiva Kumar, Srikanth Raghavan et al.. Nonlinear electronic dispersion compensation techniques for fiber-optic communication systems[C]. OFC 2008. 2008, Paper JWA56