Method and arrangement for adaptive dispersion compensation
    5.
    发明授权
    Method and arrangement for adaptive dispersion compensation 有权
    自适应色散补偿的方法和布置

    公开(公告)号:US08725007B2

    公开(公告)日:2014-05-13

    申请号:US13202665

    申请日:2009-02-20

    IPC分类号: H04B10/06

    摘要: A received optical signal is coherently demodulated and converted into electrical complex samples, which are dispersion compensated in a compensation filter. A control circuit calculates comparison values from corrected samples and an estimated error value. A plurality of compensation functions is applied according to a predetermined dispersion range and after a second iteration, the compensation filter is set to an optimum compensation function.

    摘要翻译: 接收的光信号被相干解调并转换成电复杂样本,其在补偿滤波器中进行色散补偿。 控制电路计算来自校正样本的比较值和估计误差值。 根据预定的色散范围应用多个补偿功能,并且在第二次迭代之后,将补偿滤波器设置为最佳补偿功能。

    METHOD AND ARRANGEMENT FOR BLIND DEMULTIPLEXING A POLARISATION DIVERSITY MULTIPLEX SIGNAL
    8.
    发明申请
    METHOD AND ARRANGEMENT FOR BLIND DEMULTIPLEXING A POLARISATION DIVERSITY MULTIPLEX SIGNAL 有权
    用于盲极分解多极化多项式信号的方法和装置

    公开(公告)号:US20120084619A1

    公开(公告)日:2012-04-05

    申请号:US13322656

    申请日:2009-05-28

    IPC分类号: H03M13/05 G06F11/10

    摘要: A received optical signal (SH, Sv) is coherently demodulated and converted into orthogonal x-polarisation samples (rx(n)), and y-polarisation samples (ry(n)). These samples are converted into signal x-samples zx(n) and signal y-samples zy(n) by an FIR butterfly filter (8). Correction values are calculated in an error calculating circuit (12) of a control unit (11) and added to filter transfer functions derived by a standard algorithm to determine corrected filter coefficients. Degenerate convergences calculating the transfer functions are avoided.

    摘要翻译: 接收的光信号(SH,Sv)被相干解调并转换为正交x偏振采样(rx(n))和y偏振采样(ry(n))。 这些样本由FIR蝶形滤波器(8)转换成信号x样本zx(n)和信号y样本zy(n)。 校正值在控制单元(11)的误差计算电路(12)中计算,并且被加到滤波器传递函数中,由标准算法导出,以确定校正的滤波器系数。 避免计算传递函数的退化收敛。

    Method and arrangement for blind demultiplexing a polarisation diversity multiplex signal
    10.
    发明授权
    Method and arrangement for blind demultiplexing a polarisation diversity multiplex signal 有权
    用于盲解复用极化分集复用信号的方法和装置

    公开(公告)号:US08707138B2

    公开(公告)日:2014-04-22

    申请号:US13322656

    申请日:2009-05-28

    IPC分类号: H03M13/00

    摘要: A received optical signal is coherently demodulated and converted into orthogonal x-polarization samples, and y-polarization samples. These samples are converted into signal x-samples and signal y-samples by an FIR butterfly filter. Correction values are calculated in an error calculating circuit of a control unit and added to filter transfer functions derived by a standard algorithm to determine corrected filter coefficients. Degenerate convergences calculating the transfer functions are avoided.

    摘要翻译: 接收到的光信号被相干解调并转换为正交x偏振采样和y偏振采样。 这些样本被FIR蝶形滤波器转换成信号x样本和信号y样本。 校正值在控制单元的误差计算电路中计算,并且被加到由标准算法导出的滤波器传递函数,以确定校正的滤波器系数。 避免计算传递函数的退化收敛。