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1. 发明授权

US08331496B2 Phase recovery device, phase recovery method and receiver for 16 QAM data modulation 有权
标题翻译：相位恢复装置，相位恢复方法和接收机，用于16个QAM数据调制
公开(公告)号：US08331496B2
公开(公告)日：2012-12-11
申请号：US12896476
申请日：2010-10-01
申请人： Meng Yan , Zhenning Tao , Shoichiro Oda
发明人： Meng Yan , Zhenning Tao , Shoichiro Oda
IPC分类号： H04L27/00
CPC分类号： H04L27/3827 , H04L2027/0046 , H04L2027/0067
摘要： The present invention relates to a phase recovery device, phase recovery method and receiver for 16 QAM data modulation. The phase recovery device comprises: a fourth power calculator for calculating fourth power values of respective symbols in a symbol block; a classification unit for classifying respective symbols in the symbol block based on amplitudes, so as to classify respective symbols in the symbol block into a first category having a large or small amplitude, and a second category having an intermediate amplitude; a reference point determination unit for determining a reference point based on categories of respective symbols in the symbol block and their fourth power values; a rotation unit for rotating respective symbols in the symbol block undergone the fourth power operations and being classified into the second category, based on the reference point; and a phase estimation unit for performing phase estimations based on respective symbols in the symbol block undergone the fourth power operations and being classified into the first category, and respective rotated symbols in the symbol block undergone the fourth power operations and being classified into the second category.
摘要翻译：本发明涉及用于16QAM数据调制的相位恢复装置，相位恢复方法和接收机。相位恢复装置包括：第四功率计算器，用于计算符号块中各符号的第四功率值; 分类单元，用于基于幅度对符号块中的各个符号进行分类，以将符号块中的各个符号分类为具有大或小幅度的第一类别和具有中间幅度的第二类别; 参考点确定单元，用于基于符号块中的各个符号的类别及其第四功率值来确定参考点; 旋转单元，用于旋转经过第四功率操作的符号块中的各个符号，并且基于参考点将其分类为第二类别; 以及相位估计单元，用于基于经过第四功率操作的符号块中的各个符号执行相位估计，并将其分类为第一类别，以及经过第四功率操作的符号块中的各个旋转符号，并被分类为第二类别。

2. 发明申请

US20110116809A1 PHASE RECOVERY DEVICE, PHASE COVERY METHOD AND RECEIVER FOR 16 QAM DATA MODULATION 有权
标题翻译：相位恢复装置，相位覆盖方法和接收器，用于16 QAM数据调制
公开(公告)号：US20110116809A1
公开(公告)日：2011-05-19
申请号：US12896476
申请日：2010-10-01
申请人： Meng YAN , Zhenning Tao , Shoichiro Oda
发明人： Meng YAN , Zhenning Tao , Shoichiro Oda
IPC分类号： H03D1/24 , H04B10/06
CPC分类号： H04L27/3827 , H04L2027/0046 , H04L2027/0067
摘要： The present invention relates to a phase recovery device, phase recovery method and receiver for 16 QAM data modulation. The phase recovery device comprises: a fourth power calculator for calculating fourth power values of respective symbols in a symbol block; a classification unit for classifying respective symbols in the symbol block based on amplitudes, so as to classify respective symbols in the symbol block into a first category having a large or small amplitude, and a second category having an intermediate amplitude; a reference point determination unit for determining a reference point based on categories of respective symbols in the symbol block and their fourth power values; a rotation unit for rotating respective symbols in the symbol block undergone the fourth power operations and being classified into the second category, based on the reference point; and a phase estimation unit for performing phase estimations based on respective symbols in the symbol block undergone the fourth power operations and being classified into the first category, and respective rotated symbols in the symbol block undergone the fourth power operations and being classified into the second category.
摘要翻译：本发明涉及用于16QAM数据调制的相位恢复装置，相位恢复方法和接收机。相位恢复装置包括：第四功率计算器，用于计算符号块中各符号的第四功率值; 分类单元，用于基于幅度对符号块中的各个符号进行分类，以将符号块中的各个符号分类为具有大或小幅度的第一类别和具有中间幅度的第二类别; 参考点确定单元，用于基于符号块中的各个符号的类别及其第四功率值来确定参考点; 旋转单元，用于旋转经过第四功率操作的符号块中的各个符号，并且基于参考点将其分类为第二类别; 以及相位估计单元，用于基于经过第四功率操作的符号块中的各个符号进行相位估计，并将其分类为第一类别，以及经过第四功率操作的符号块中的相应旋转符号，并被分类为第二类别。

3. 发明授权

US08666262B2 Method for adaptive blind equalization of PSK signal, equalizer and receiver 有权
标题翻译： PSK信号，均衡器和接收机的自适应盲均衡方法
公开(公告)号：US08666262B2
公开(公告)日：2014-03-04
申请号：US12906560
申请日：2010-10-18
申请人： Meng Yan , Huijian Zhang , Zhenning Tao , Shoichiro Oda
发明人： Meng Yan , Huijian Zhang , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/60
CPC分类号： H04L25/0305 , H04L2025/03401 , H04L2025/03675
摘要： The present application discloses a method for adaptive blind equalization of a PSK signal, an equalizer and a receiver. According to embodiments as provided, a conjugate product of a current output and a precedent output of an FIR filter is calculated, an equalization coefficient is updated using the conjugate product, and then an input signal is filtered using the FIR filter with the updated equalization coefficient. The embodiments as provided is applicable to adaptive blind equalization of any phase shift keying signal including a BPSK signal.
摘要翻译：本申请公开了一种用于PSK信号，均衡器和接收机的自适应盲均衡的方法。根据提供的实施例，计算FIR滤波器的电流输出和先前输出的共轭乘积，使用共轭乘积来更新均衡系数，然后使用具有更新的均衡系数的FIR滤波器对输入信号进行滤波。所提供的实施例可应用于包括BPSK信号的任何相移键控信号的自适应盲均衡。

4. 发明申请

US20110243575A1 METHOD FOR ADAPTIVE BLIND EQUALIZATION OF PSK SIGNAL, EQUALIZER AND RECEIVER 有权
标题翻译： PSK信号，均衡器和接收器的自适应盲均衡的方法
公开(公告)号：US20110243575A1
公开(公告)日：2011-10-06
申请号：US12906560
申请日：2010-10-18
申请人： Meng YAN , Huijian Zhang , Zhenning Tao , Shoichiro Oda
发明人： Meng YAN , Huijian Zhang , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/06 , H03H7/30
CPC分类号： H04L25/0305 , H04L2025/03401 , H04L2025/03675
摘要： The present application discloses a method for adaptive blind equalization of a PSK signal, an equalizer and a receiver. According to embodiments as provided, a conjugate product of a current output and a precedent output of an FIR filter is calculated, an equalization coefficient is updated using the conjugate product, and then an input signal is filtered using the FIR filter with the updated equalization coefficient. The embodiments as provided is applicable to adaptive blind equalization of any phase shift keying signal including a BPSK signal.
摘要翻译：本申请公开了一种用于PSK信号，均衡器和接收机的自适应盲均衡的方法。根据提供的实施例，计算FIR滤波器的电流输出和先前输出的共轭乘积，使用共轭乘积来更新均衡系数，然后使用具有更新的均衡系数的FIR滤波器对输入信号进行滤波。所提供的实施例可应用于包括BPSK信号的任何相移键控信号的自适应盲均衡。

5. 发明申请

US20110286741A1 APPARATUS AND METHOD FOR MONITORING STATISTICAL CHARACTERISTICS OF PHASE NOISES, AND COHERENT OPTICAL COMMUNICATION RECEIVER 有权
标题翻译：用于监测相位噪声统计特性的装置和方法以及相关光通信接收机
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。

6. 发明授权

US08514922B2 Filter coefficient control apparatus and method 有权
标题翻译：滤波系数控制装置及方法
公开(公告)号：US08514922B2
公开(公告)日：2013-08-20
申请号：US12835214
申请日：2010-07-13
申请人： Lei Li , Zhenning Tao , Ling Liu , Shoichiro Oda
发明人： Lei Li , Zhenning Tao , Ling Liu , Shoichiro Oda
IPC分类号： H03H7/30
CPC分类号： H04B10/6165 , H04B10/61
摘要： This invention relates to an apparatus and a method for controlling a filter coefficient. The filter coefficient control apparatus controls a coefficient of a filter of a phase recovering apparatus, and comprises a phase offset obtaining means, for obtaining a phase offset between a carrier and a local oscillation; an autocorrelation calculating means, for calculating an autocorrelation and related statistics of the phase offset; and a filter coefficient determining means, for determining the coefficient of the filter in accordance with the autocorrelation and related statistics.
摘要翻译：本发明涉及一种用于控制滤波器系数的装置和方法。滤波器系数控制装置控制相位恢复装置的滤波器的系数，并且包括用于获得载波和本地振荡之间的相位偏移的相位偏移获取装置; 自相关计算装置，用于计算相位偏移的自相关和相关统计; 以及滤波器系数确定装置，用于根据自相关和相关统计确定滤波器的系数。

7. 发明申请

US20110166846A1 SIMULATION DEVICE AND SIMULATION METHOD 有权
标题翻译：模拟装置和模拟方法
公开(公告)号：US20110166846A1
公开(公告)日：2011-07-07
申请号：US12896428
申请日：2010-10-01
申请人： Liang Dou , Zhenning Tao , Shoichiro Oda
发明人： Liang Dou , Zhenning Tao , Shoichiro Oda
IPC分类号： G06G7/62
CPC分类号： H04Q11/0062 , H04Q2011/0086 , H04Q2213/1301
摘要： The present invention relates to a simulation device and simulation method for a cascade communication system. The cascade communication system comprises a plurality of nodes numbered as 1 to N successively from a transmitter to a receiver, the method comprises: acquiring simulation parameters required for simulating the cascade communication system; calculating reverse transfer functions of the respective nodes; determining a current node in a sequence from the Nth node to the first node; adding noise that should be added at the current node to a simulation signal of a previous node from the current node; simulating the current node to generate a simulation signal of the current node, by using the simulation signal of the previous node added with the noise that should be added at the current node, based on the reverse transfer function of the current node; judging whether simulations of all the nodes are completed; if the simulations of all the nodes are not completed, repeating the adding and the simulating for the simulation signal of the current node; if the simulations of all the nodes are completed, determining a cost of the cascade communication system based on the simulation signal of the current node.
摘要翻译：本发明涉及级联通信系统的仿真装置和仿真方法。级联通信系统包括从发射机到接收机连续编号为1到N的多个节点，该方法包括：获取模拟级联通信系统所需的模拟参数; 计算各个节点的反向传递函数; 确定从第N个节点到第一节点的序列中的当前节点; 将当前节点应添加的噪声添加到来自当前节点的先前节点的模拟信号; 基于当前节点的反向传递函数，通过使用添加了当前节点应添加的噪声的先前节点的模拟信号，模拟当前节点生成当前节点的模拟信号; 判断所有节点的仿真是否完成; 如果所有节点的仿真都没有完成，则对当前节点的仿真信号重复加法和仿真; 如果所有节点的模拟完成，则根据当前节点的模拟信号确定级联通信系统的成本。

8. 发明授权

US08452192B2 Apparatus and method for monitoring statistical characteristics of phase noises, and coherent optical communication receiver 有权
标题翻译：监测相位噪声统计特性的装置和方法，以及相干光通信接收机
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。

9. 发明申请

US20120275797A1 POLARIZATION SCATTERING COMPENSATION DEVICE AND POLARIZATION SCATTERING COMPENSATION METHOD 有权
标题翻译：偏振散射补偿装置和极化散射补偿方法
公开(公告)号：US20120275797A1
公开(公告)日：2012-11-01
申请号：US13458773
申请日：2012-04-27
申请人： Lei Li , Zhenning Tao , Shoichiro Oda
发明人： Lei Li , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/00 , H04B15/00
CPC分类号： H04B10/66 , H04B10/2519 , H04J14/06
摘要： Polarization scattering compensation device and method are disclosed. In the device, a time sequence alignment unit aligns time sequences of signals in the first and second polarization state transmitted simultaneously; a polarization scattering estimation unit estimates a scattering coefficient of a scattering by the signal in the first polarization state on the signal in the second polarization state, and a scattering coefficient of a scattering by the signal in the second polarization state on the signal in the first polarization state; and a polarization scattering removal unit removes the scattering by the signal in the first polarization state on the signal in the second polarization state, and the scattering by the signal in the second polarization state on the signal in the first polarization state, in accordance with the scattering coefficients.
摘要翻译：公开了极化散射补偿装置和方法。在该装置中，时间序列对准单元对准同时传输的第一和第二极化状态的信号的时间序列; 偏振散射估计单元通过第一偏振态的信号对第二偏振态的信号和第二偏振态中的信号的散射散射系数估计第一偏振态的信号的散射散射系数极化状态; 并且偏振散射去除单元根据第二偏振状态的信号和第一偏振态的信号在第一偏振态的信号上的第一偏振态的信号的散射，根据第散射系数。

10. 发明申请

US20110142455A1 CROSSTALK COEFFICIENT ESTIMATING APPARATUS AND CROSSTALK COEFFICIENT ESTIMATING METHOD 有权
标题翻译： CROSSTALK系数估计装置和CROSSTALK系数估计方法
公开(公告)号：US20110142455A1
公开(公告)日：2011-06-16
申请号：US12956507
申请日：2010-11-30
申请人： Ling Liu , Zhenning Tao , Shoichiro Oda
发明人： Ling Liu , Zhenning Tao , Shoichiro Oda
IPC分类号： H04B10/00
CPC分类号： H04B10/0795
摘要： 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.
摘要翻译：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。

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