Multilevel signal processing technique for a 30 Gbit/inch/sup 2/ phase change optical disk system
Tóm tắt
Developed a Viterbi decoder for multilevel signal. Since this decoder compensates nonlinearity and pattern dependence, it improved a noise margin by 3.5dB. We confirmed the feasibility of a phase change optical disk system which has a recording density of 30Gbit/inch/sup 2/.
Từ khóa
#Optical signal processing #Optical recording #Viterbi algorithm #Optical noise #Maximum likelihood decoding #Nonlinear optics #Disk recording #Error analysis #Degradation #Computational modelingTài liệu tham khảo
hayashi, 1998, Technical Report of IElCE MR98-30, 7
balasubtamanian, 2001, Proc Optical Data Storage Topical Meeting
kobayashi, 1994, OSA Optical Data Storage Technical Digest, 130