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    • 12. 发明授权
    • Crosstalk coefficient estimating apparatus and crosstalk coefficient estimating method
    • 串扰系数估计装置和串扰系数估计方法
    • US08675470B2
    • 2014-03-18
    • US12956507
    • 2010-11-30
    • Ling LiuZhenning TaoShoichiro Oda
    • Ling LiuZhenning TaoShoichiro Oda
    • H04J1/12
    • H04B10/0795
    • This invention relates to crosstalk coefficient estimating apparatus and crosstalk coefficient estimating method. The crosstalk coefficient estimating apparatus is used to estimate a crosstalk coefficient of crosstalk inflicted on one channel of an optical fiber transmission system comprising two or more channels. The crosstalk coefficient estimating apparatus comprises a complex conjugate unit, for obtaining a complex conjugate signal for signal in one polarization-state of another channel other than said one channel; a multiplying unit, for multiplying the complex conjugate signal obtained by the complex conjugate unit with signal in another polarization-state of the another channel; and a filter, for filtering the multiplication result of the multiplying unit to obtain a crosstalk coefficient of crosstalk inflicted on the signal in one polarization-state of said one channel, wherein a transmission function of the filter is set according to system parameters of the optical fiber transmission system.
    • 本发明涉及串扰系数估计装置和串扰系数估计方法。 串扰系数估计装置用于估计包含两个或更多个信道的光纤传输系统的一个信道上产生的串扰串扰系数。 串扰系数估计装置包括复共轭单元,用于获得用于除了所述一个信道之外的另一信道的一个极化状态的信号的复共轭信号; 乘法单元,用于将由复共轭单元获得的复共轭信号与另一信道的另一极化状态中的信号相乘; 以及滤波器,用于对乘法单元的相乘结果进行滤波,以获得对所述一个信道的一个极化状态的信号产生的串扰的串扰系数,其中根据光学系统参数设置滤波器的传输函数 光纤传输系统。