公开(公告)号：US08640014B2

公开(公告)日：2014-01-28

申请号：US13413905

申请日：2012-03-07

申请人： Fan Mo ,  Sameep Dave ,  Christian Rasmussen ,  Mehmet Aydinlik

发明人： Fan Mo ,  Sameep Dave ,  Christian Rasmussen ,  Mehmet Aydinlik

IPC分类号： H03M13/03 ,  H03M13/00 ,  H04L27/06

CPC分类号： H04L25/067

摘要： Soft bit metric generation computational complexity can be reduced by identifying and utilizing only the dominant terms in a reliability calculation such as a logarithmic likelihood ratio (LLR). The dominant terms are those terms for which the signs of the x and y components match those of channel outputs of the channel outputs. One technique for identifying the dominant terms is by determining the most likely transitions from two consecutive channel output samples Values for the dominant terms can be estimated by either the joint reliability of two consecutive samples of the in-phase component (x1,x2) or by the joint reliability of two consecutive samples of the quadrature components (y1,y2).

摘要翻译： 通过仅识别和利用诸如对数似然比（LLR）的可靠性计算中的主要术语，可以减少软比特度量生成计算复杂度。 主要术语是x和y分量的符号与通道输出的通道输出的符号相符的术语。 用于识别主要术语的一种技术是通过确定来自两个连续通道输出样本的最可能的转换。主要术语的值可以通过同相分量（x1，x2）的两个连续采样的连接可靠性或由同相分量 正交分量（y1，y2）的两个连续样本的联合可靠性。

公开(公告)号：US20120230379A1

公开(公告)日：2012-09-13

申请号：US13413905

申请日：2012-03-07

申请人： Fan Mo ,  Sameep Dave ,  Christian Rasmussen ,  Mehmet Aydinlik

发明人： Fan Mo ,  Sameep Dave ,  Christian Rasmussen ,  Mehmet Aydinlik

IPC分类号： H04B17/00

CPC分类号： H04L25/067

摘要： Soft bit metric generation computational complexity can be reduced by identifying and utilizing only the dominant terms in a reliability calculation such as a logarithmic likelihood ratio (LLR). The dominant terms are those terms for which the signs of the x and y components match those of channel outputs of the channel outputs. One technique for identifying the dominant terms is by determining the most likely transitions from two consecutive channel output samples Values for the dominant terms can be estimated by either the joint reliability of two consecutive samples of the in-phase component (x1,x2) or by the joint reliability of two consecutive samples of the quadrature components (y1,y2).

摘要翻译： 通过仅识别和利用诸如对数似然比（LLR）的可靠性计算中的主要术语，可以减少软比特度量生成计算复杂度。 主要术语是x和y分量的符号与通道输出的通道输出的符号相符的术语。 用于识别主要术语的一种技术是通过确定来自两个连续通道输出样本的最可能的转换。主要术语的值可以通过同相分量（x1，x2）的两个连续采样的连接可靠性或由同相分量 正交分量（y1，y2）的两个连续样本的联合可靠性。

公开(公告)号：US20120230676A1

公开(公告)日：2012-09-13

申请号：US13413873

申请日：2012-03-07

申请人： Fan Mo ,  Sameep Dave ,  Christian Rasmussen ,  Mehmet Aydinlik ,  Graeme Pendock

发明人： Fan Mo ,  Sameep Dave ,  Christian Rasmussen ,  Mehmet Aydinlik ,  Graeme Pendock

IPC分类号： H04J14/06 ,  H04B10/08

CPC分类号： H04J14/06 ,  H04B10/614 ,  H04B10/6166

摘要： In an optical transmission system which utilizes polarization multiplexing, a receiver includes an adaptive equalizer which is adjusted at turn-up such that two polarization modes at the equalizer output are time aligned. The adaptive equalizer may be reset in a directed manner in response to an indication that one polarization mode is present at both the first and second outputs. Further, the dominant filters taps of the adaptive equalizer are maintained near a middle of a tap index range. The receiver may also include an interpolation function upstream of the adaptive equalizer and a symbol timing error estimation function that feeds a control signal back to the interpolation function, wherein the interpolation function causes the adaptive equalizer function and symbol timing error estimation function to receive an integer number of samples per symbol.

摘要翻译： 在利用偏振复用的光传输系统中，接收机包括一个自适应均衡器，该自适应均衡器在上电时被调整，使得均衡器输出处的两个偏振模式被时间对准。 响应于在第一和第二输出处存在一个偏振模式的指示，自适应均衡器可以以有向的方式被复位。 此外，自适应均衡器的主要滤波器抽头保持在分接索引范围的中间附近。 接收机还可以包括自适应均衡器上游的内插函数和将控制信号反馈给内插函数的符号定时误差估计函数，其中插值函数使得自适应均衡器函数和符号定时误差估计函数接收整数 每个符号的样本数。

公开(公告)号：US08312346B2

公开(公告)日：2012-11-13

申请号：US12434325

申请日：2009-05-01

申请人： Dan Budin ,  Mehmet Aydinlik

发明人： Dan Budin ,  Mehmet Aydinlik

IPC分类号： G06F11/00

CPC分类号： H03M13/00 ,  H03M13/29 ,  H03M13/612 ,  H03M13/6337 ,  H03M13/6502 ,  H03M13/6508

摘要： Systems, methods, and an article of manufacture for performing serial concatenated decoding are shown and described. The decoding includes monitoring a measure of the number of corrections made to a plurality data blocks during outer decoding and determining whether applying sub-optimal inner decoding would reduce a computational load experienced by a processor performing the serial concatenated decoding when compared to the computation load experienced by the processor when optimal inner decoding is applied.

摘要翻译： 显示和描述了用于执行串行级联解码的系统，方法和制品。 解码包括监视在外部解码期间对多个数据块进行的校正次数的度量，并且确定当与经历的计算负载相比较时，是否应用次最佳内部解码将减少执行串行级联解码的处理器所经历的计算负载 当处理器应用最优内部解码时。

公开(公告)号：US20100281334A1

公开(公告)日：2010-11-04

申请号：US12434325

申请日：2009-05-01

申请人： Dan Budin ,  Mehmet Aydinlik

发明人： Dan Budin ,  Mehmet Aydinlik

IPC分类号： H03M13/29 ,  G06F11/10 ,  H03M13/07 ,  H03M13/05

CPC分类号： H03M13/00 ,  H03M13/29 ,  H03M13/612 ,  H03M13/6337 ,  H03M13/6502 ,  H03M13/6508

摘要： Systems, methods, and an article of manufacture for performing serial concatenated decoding are shown and described. The decoding includes monitoring a measure of the number of corrections made to a plurality data blocks during outer decoding and determining whether applying sub-optimal inner decoding would reduce a computational load experienced by a processor performing the serial concatenated decoding when compared to the computation load experienced by the processor when optimal inner decoding is applied.

摘要翻译： 显示和描述了用于执行串行级联解码的系统，方法和制品。 解码包括监视在外部解码期间对多个数据块进行的校正次数的度量，并且确定当与经历的计算负载相比较时，是否应用次最佳内部解码将减少执行串行级联解码的处理器所经历的计算负载 当处理器应用最优内部解码时。

公开(公告)号：US08806306B2

公开(公告)日：2014-08-12

申请号：US13413316

申请日：2012-03-06

申请人： Pierre Humblet ,  Mehmet Aydinlik

发明人： Pierre Humblet ,  Mehmet Aydinlik

IPC分类号： H03M13/45 ,  H04L25/06 ,  H04L27/233 ,  H03M13/53 ,  H03M13/29

CPC分类号： H04L25/067 ,  H03M13/2957 ,  H03M13/45 ,  H04L27/2331

摘要： A computer implemented method for generating soft bit metric information of telecommunications systems employing differential encoding of data.

摘要翻译： 一种用于生成采用数据差分编码的电信系统的软比特度量信息的计算机实现的方法。