发明名称 |
SUPERIMPOSED TRAINING AND DIGITAL FILTERING COHERENT OPTICAL RECEIVERS |
摘要 |
In a polarization-multiplexing optical communications system, a method and system for coherent reception of polarization-multiplexed optical communications. Training and data sequences are recovered from a plurality of orthogonally polarized signals, such that training and data sequences may be used on a single channel without loss of spectral efficiency. This is accomplished by estimating a channel response for each orthogonally polarized signal based on the mean of the signal and distinguishing between a data sequence and a training sequence in each orthogonally polarized signal. Such distinguishing is accomplished according to an iterative linear minimum mean-square equalization based on the respective channel response estimate.
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申请公布号 |
US2011194855(A1) |
申请公布日期 |
2011.08.11 |
申请号 |
US20100702895 |
申请日期 |
2010.02.09 |
申请人 |
NEC LABORATORIES AMERICA, INC. |
发明人 |
BATSHON HUSSAM G.;XU LEI;WANG TING;DJORDJEVIC IVAN B. |
分类号 |
H04J14/06 |
主分类号 |
H04J14/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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