发明名称 |
APPARATUS AND METHOD FOR MONITORING STATISTICAL CHARACTERISTICS OF PHASE NOISES, AND COHERENT OPTICAL COMMUNICATION RECEIVER |
摘要 |
<p>This invention relates to an apparatus and a method for monitoring statistical characteristics of phase noises, as well as to a coherent optical communication receiver. The apparatus for monitoring statistical 5 characteristics of phase noises comprises an argument calculating unit (203), for obtaining an argument of a signal input thereto; an unwrapping unit (204), for unwrapping the argument obtained by the argument calculating unit (203) to obtain a phase signal (205); a delaying unit (207), for delaying the phase signal; a differentiating unit (209), for obtaining a difference between a phase 10 signal currently obtained by the unwrapping unit (204) and a phase signal delayed by the delaying unit (207); a modulus squaring unit (210), for obtaining a square of the modulus of the difference; and an averaging unit (211), for averaging squares of moduli of a plurality of differences obtained by the modulus squaring unit (210) to obtain a mean-squared differential phase 15 (MSDP) value.</p> |
申请公布号 |
WO2010060245(A1) |
申请公布日期 |
2010.06.03 |
申请号 |
WO2008CN73245 |
申请日期 |
2008.11.28 |
申请人 |
FUJITSU LIMITED;YAN, WEIZHEN;TAO, ZHENNING;ODA, SHOICHIRO |
发明人 |
YAN, WEIZHEN;TAO, ZHENNING;ODA, SHOICHIRO |
分类号 |
H04J14/02 |
主分类号 |
H04J14/02 |
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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