发明名称 |
RECEIVING APPARATUS AND METHOD FOR ELECTRONIC NOISE COMPENSATION IN PHASE MODULATED OPTICAL TRANSMISSION |
摘要 |
A receiving apparatus and method for processing a differential phase shift keying signal carrying a plurality of symbols are disclosed to provide for improved compensation of linear and non-linear noise in phase modulated optical transmission. The receiving apparatus comprises an input unit for receiving electrical signals derived from an optical signal and a calculation unit for calculating a current value of a decision variable. The current value is indicative of a differential phase shift in the optical signal between a currently received symbol and a previously received symbol as a function of the optical signal power of the optical signal for the currently received symbol and at least one previous value of the decision variable. The receiving apparatus also comprises a decision unit for determining the differential phase shift from the current value of the decision variable obtained from the calculation unit to obtain the currently received symbol. |
申请公布号 |
WO2009046759(A1) |
申请公布日期 |
2009.04.16 |
申请号 |
WO2007EP60691 |
申请日期 |
2007.10.09 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL);ELBERS, JOERG-PETER;GRIESSER, HELMUT |
发明人 |
ELBERS, JOERG-PETER;GRIESSER, HELMUT |
分类号 |
H04B10/67;H04B10/69;H04L27/22 |
主分类号 |
H04B10/67 |
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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