发明申请
US20090177945A1 POLARIZATION MODE DISPERSION COMPENSATION USING BCJR EQUALIZER AND ITERATIVE LDPC DECODING
有权
使用BCJR均衡器和迭代LDPC解码的极化模式分散补偿
- 专利标题： POLARIZATION MODE DISPERSION COMPENSATION USING BCJR EQUALIZER AND ITERATIVE LDPC DECODING
- 专利标题（中）： 使用BCJR均衡器和迭代LDPC解码的极化模式分散补偿
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申请号： US11950720申请日： 2007-12-05
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公开(公告)号： US20090177945A1公开(公告)日： 2009-07-09
- 发明人: Ivan B. Djordjevic , Milorad Cvjetic , Lei Xu , Ting Wang
- 申请人： Ivan B. Djordjevic , Milorad Cvjetic , Lei Xu , Ting Wang
- 申请人地址： US NJ Princeton
- 专利权人： NEC LABORATORIES AMERICA, INC.
- 当前专利权人： NEC LABORATORIES AMERICA, INC.
- 当前专利权人地址： US NJ Princeton
- 主分类号： H03M13/00
- IPC分类号： H03M13/00
摘要：
A turbo equalizer includes a Bahl-Cocke-Jelinek-Raviv (BCJR) equalizer configured to receive a transmitted signal and partially cancel inter-symbol interference (ISI) due to polarization-mode dispersion (PMD). A low-density parity check (LDPC) decoder is coupled to the BCJR equalizer to receive channel bit reliabilities therefrom. The LDPC decoder iteratively provides extrinsic soft information feedback to the BCJR equalizer to compensate for PMD.
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