公开(公告)号：US09219622B2

公开(公告)日：2015-12-22

申请号：US13412096

申请日：2012-03-05

申请人： Weizhen Yan ,  Zhenning Tao ,  Takeshi Hoshida

发明人： Weizhen Yan ,  Zhenning Tao ,  Takeshi Hoshida

IPC分类号： H04B10/18 ,  H04L25/02 ,  H04B10/69

CPC分类号： H04L25/0202 ,  H04B10/6971

摘要： The embodiments relate to a method and an apparatus for compensating nonlinear damage. The method and apparatus being used in a dual-polarization communication system, the method comprising: calculating, according to input time-domain signals, a plurality of multiplicative parameters indicative of nonlinear damages to the input signals; constructing a plurality of multiplicators by using the plurality of multiplicative parameters; and compensating the input time-domain signals by using the plurality of multiplicators.

摘要翻译： 实施例涉及用于补偿非线性损伤的方法和装置。 所述方法和装置用于双极化通信系统中，所述方法包括：根据输入的时域信号，计算指示对所述输入信号的非线性损伤的多个乘法参数; 通过使用所述多个乘法参数构造多个乘法器; 以及通过使用所述多个乘法器来补偿所述输入时域信号。

公开(公告)号：US08935115B2

公开(公告)日：2015-01-13

申请号：US13412176

申请日：2012-03-05

申请人： Weizhen Yan ,  Zhenning Tao ,  Takeshi Hoshida

发明人： Weizhen Yan ,  Zhenning Tao ,  Takeshi Hoshida

IPC分类号： G06F19/00 ,  H04B10/255 ,  H04B10/69

CPC分类号： H04B10/255 ,  H04B10/6971

摘要： A method and apparatus for compensating nonlinear damage are disclosed. The method for compensating nonlinear damage, including: determining an additive parameter indicating an amount of nonlinear damage based on a plurality of sampled signal sets among which a sampling time of an input signal varies according to different time; and subtracting the additive parameter from the input signal.

摘要翻译： 公开了一种用于补偿非线性损伤的方法和装置。 一种用于补偿非线性损伤的方法，包括：基于多个采样信号集确定表示非线性损伤量的附加参数，其中输入信号的采样时间根据不同的时间而变化; 并从输入信号中减去加法参数。

公开(公告)号：US20130230313A1

公开(公告)日：2013-09-05

申请号：US13412096

申请日：2012-03-05

申请人： Weizhen YAN ,  Zhenning Tao ,  Takeshi Hoshida

发明人： Weizhen YAN ,  Zhenning Tao ,  Takeshi Hoshida

IPC分类号： H04B10/18

CPC分类号： H04L25/0202 ,  H04B10/6971

摘要： The embodiments relate to a method and an apparatus for compensating nonlinear damage. The method and apparatus being used in a dual-polarization communication system, the method comprising: calculating, according to input time-domain signals, a plurality of multiplicative parameters indicative of nonlinear damages to the input signals; constructing a plurality of multiplicators by using the plurality of multiplicative parameters; and compensating the input time-domain signals by using the plurality of multiplicators.

摘要翻译： 实施例涉及用于补偿非线性损伤的方法和装置。 所述方法和装置用于双极化通信系统中，所述方法包括：根据输入的时域信号，计算指示对所述输入信号的非线性损伤的多个乘法参数; 通过使用所述多个乘法参数构造多个乘法器; 以及通过使用所述多个乘法器来补偿所述输入时域信号。

公开(公告)号：US20120290244A1

公开(公告)日：2012-11-15

申请号：US13412176

申请日：2012-03-05

申请人： Weizhen YAN ,  Zhenning Tao ,  Takeshi Hoshida

发明人： Weizhen YAN ,  Zhenning Tao ,  Takeshi Hoshida

IPC分类号： G01D18/00 ,  G06F19/00

CPC分类号： H04B10/255 ,  H04B10/6971

摘要： A method and apparatus for compensating nonlinear damage are disclosed. The method for compensating nonlinear damage, including: determining an additive parameter indicating an amount of nonlinear damage based on a plurality of sampled signal sets among which a sampling time of an input signal varies according to different time; and subtracting the additive parameter from the input signal.

摘要翻译： 公开了一种用于补偿非线性损伤的方法和装置。 一种用于补偿非线性损伤的方法，包括：基于多个采样信号集确定表示非线性损伤量的附加参数，其中输入信号的采样时间根据不同的时间而变化; 并从输入信号中减去加法参数。

公开(公告)号：US08655195B2

公开(公告)日：2014-02-18

申请号：US13242732

申请日：2011-09-23

申请人： Weizhen Yan ,  Zhenning Tao ,  Lei Li

发明人： Weizhen Yan ,  Zhenning Tao ,  Lei Li

IPC分类号： H04B10/00

CPC分类号： H04B10/6162

摘要： The present invention relates to an average length magnitude detecting apparatus and method, and an optical coherent receiver. The average length magnitude detecting method is adopted for detecting whether an average length of an averager used by a polarization crosstalk canceling apparatus in a receiver is long or short, comprising: determining a magnitude of a residual polarization crosstalk coefficient of the receiver; and determining an index that indicates whether the average length of the averager is long or short according to the determined magnitude of the residual polarization crosstalk coefficient.

摘要翻译： 本发明涉及平均长度幅度检测装置和方法以及光学相干接收机。 采用平均长度幅度检测方法，用于检测接收机中由偏振串扰消除装置使用的平均长度是长或短，包括：确定接收机的残余极化串扰系数的大小; 以及根据确定的剩余极化串扰系数的大小，确定指示平均器的平均长度是长还是短的指标。

公开(公告)号：US20120026860A1

公开(公告)日：2012-02-02

申请号：US13114515

申请日：2011-05-24

申请人： Weizhen YAN ,  Zhenning Tao

发明人： Weizhen YAN ,  Zhenning Tao

IPC分类号： H04B10/18 ,  H04B10/06 ,  H04L5/12

CPC分类号： H04L27/20 ,  H04L5/04 ,  H04L25/03006 ,  H04L27/06 ,  H04L27/3854

摘要： Apparatus and method for cross phase modulation recovery are disclosed. An apparatus for cross phase modulation recovery may include M stages of cross phase modulation recovering devices connected in cascade, wherein M≧2, and each stage of the M-stages of cross phase modulation recovering devices is configured to perform cross phase modulation recovery to a polarization de-multiplexed signal input into the each stage. An optical coherent receiver including such an apparatus for cross phase modulation recovery is also disclosed.

摘要翻译： 公开了用于交叉相位调制恢复的装置和方法。 用于交叉相位调制恢复的装置可以包括级联连接的M级交叉相位调制恢复装置，其中M≥2，并且跨越相位调制恢复装置的M级的每一级被配置为执行交叉相位调制恢复到 极化解复用信号输入到每个级。 还公开了一种包括用于交叉相位调制恢复的装置的光学相干接收机。

公开(公告)号：US08452192B2

公开(公告)日：2013-05-28

申请号：US13058262

申请日：2008-11-28

申请人： Weizhen Yan ,  Zhenning Tao ,  Shoichiro Oda

发明人： Weizhen Yan ,  Zhenning Tao ,  Shoichiro Oda

IPC分类号： H04B10/06

CPC分类号： H04J14/02 ,  H04B10/60 ,  H04B10/611 ,  H04B10/6163

摘要： 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 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 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 (MSDP) value.

摘要翻译： 本发明涉及用于监测相位噪声的统计特性以及相干光通信接收机的装置和方法。 用于监视相位噪声的统计特性的装置包括：一个参数计算单元，用于获得输入到其中的信号的自变量; 一个展开单元（204），用于展开由参数计算单元（203）获得的参数以获得相位信号（205）; 延迟单元（207），用于延迟所述相位信号; 差分单元（209），用于获得由解包单元（204）当前获得的相位信号与由延迟单元（207）延迟的相位信号之间的差值; 模数平方单元（210），用于获得所述差的模数的平方; 以及平均单元（211），用于对通过所述模量平方单元（210）获得的多个差的模量的平均值进行平均，以获得平均差分相位（MSDP）值。

公开(公告)号：US20110286741A1

公开(公告)日：2011-11-24

申请号：US13058262

申请日：2008-11-28

申请人： Weizhen Yan ,  Zhenning Tao ,  Shoichiro Oda

发明人： Weizhen Yan ,  Zhenning Tao ,  Shoichiro Oda

IPC分类号： H04B10/08

CPC分类号： H04J14/02 ,  H04B10/60 ,  H04B10/611 ,  H04B10/6163

摘要： 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 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 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 (MSDP) value.

摘要翻译： 本发明涉及用于监测相位噪声的统计特性以及相干光通信接收机的装置和方法。 用于监视相位噪声的统计特性的装置包括：一个参数计算单元，用于获得输入到其中的信号的自变量; 一个展开单元（204），用于展开由参数计算单元（203）获得的参数以获得相位信号（205）; 延迟单元（207），用于延迟所述相位信号; 差分单元（209），用于获得由解包单元（204）当前获得的相位信号与由延迟单元（207）延迟的相位信号之间的差; 模数平方单元（210），用于获得所述差的模数的平方; 以及平均单元（211），用于对通过所述模量平方单元（210）获得的多个差的模量的平均值进行平均，以获得平均差分相位（MSDP）值。

公开(公告)号：US08374512B2

公开(公告)日：2013-02-12

申请号：US12219938

申请日：2008-07-30

申请人： Zhenning Tao ,  Huijian Zhang ,  Takeshi Hoshida ,  Lei Li

发明人： Zhenning Tao ,  Huijian Zhang ,  Takeshi Hoshida ,  Lei Li

IPC分类号： H04B10/06 ,  H04B10/08

CPC分类号： H04B10/6164 ,  H04B10/61 ,  H04B10/613 ,  H04B10/63

摘要： The present invention provides a frequency offset monitoring device and an optical coherent receiver. A low speed frequency offset monitoring device comprises a signal speed lowering section, for lowering the speed of an inputted signal and outputting the speed lowered signal, and a frequency offset monitor, for monitoring frequency offset of the speed lowered signal outputted by the signal speed lowering section.

公开(公告)号：US08886056B2

公开(公告)日：2014-11-11

申请号：US13221312

申请日：2011-08-30

申请人： Lei Li ,  Zhenning Tao ,  Takeshi Hoshida

发明人： Lei Li ,  Zhenning Tao ,  Takeshi Hoshida

IPC分类号： H04B10/00 ,  H04B10/255 ,  H04B10/61 ,  H04B10/079

CPC分类号： H04B10/0795 ,  H04B10/255 ,  H04B10/6163

摘要： The present invention provides apparatus for self-phase modulation noise calculation, apparatus for self-phase modulation noise elimination and optical coherent receiver. The apparatus for calculation comprises: a signal receiver to receive an input signal; a calculator connected to the signal receiver to calculate a self-phase modulation noise at the current instant by using the signal powers of an input signal waveform at the current instant and at several sampling instants adjacent to the current instant. The embodiments of the present invention calculates the self-phase modulation noise at a certain instant by using the signal powers at a plurality of digital sampling periods before and after this instant, and when the apparatus is used to calculate the self-phase modulation noise of each of the sub-spans in an optical fiber transmission link, in case that the calculation precision is ensured, the granularity of the sub-spans may be reduced, thereby lowering the complexity of the calculation.

摘要翻译： 本发明提供了用于自相位调制噪声计算的装置，用于自相位调制噪声消除的装置和光学相干接收机。 该计算装置包括：接收输入信号的信号接收器; 连接到信号接收器的计算器，通过使用当前时刻的输入信号波形的信号功率和与当前时刻相邻的几个采样时刻来计算当前时刻的自相位调制噪声。 本发明的实施例通过在该时刻之前和之后的多个数字采样周期中使用信号功率来计算某一时刻的自相位调制噪声，并且当该装置用于计算自相位调制噪声的自相位调制噪声 在光纤传输链路中的每个子跨度，在确保计算精度的情况下，可能减小子跨度的粒度，从而降低计算的复杂度。