公开(公告)号：US08422600B2

公开(公告)日：2013-04-16

申请号：US12536856

申请日：2009-08-06

申请人： Pansoo Kim ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

发明人： Pansoo Kim ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

IPC分类号： H04L27/06 ,  H03M13/03

CPC分类号： H04L27/22 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0066 ,  H04L2027/0067

摘要： Disclosed is a phase error estimating an apparatus and a method which provides improved convergence speed and tracking speed even in mobile channel environment by variably applying the step size for phase error estimation according to channel status. The apparatus for estimating a phase error includes: a posterior probability (APP) average calculating unit for calculating an APP average value from a soft decision result of a currently received symbol; a step size determining unit for determining a step size variably according to channel status; and a phase error estimating unit for estimating a phase error of the currently received symbol from a phase error of a previously received symbol and the APP average value by using the variably determined step size.

摘要翻译： 公开了一种相位误差估计装置和方法，即使在移动信道环境中也可以通过根据信道状态可变地应用步长来进行相位误差估计，从而提高收敛速度和跟踪速度。 用于估计相位误差的装置包括：后验概率（APP）平均计算单元，用于根据当前接收的符号的软判决结果计算APP平均值; 步长确定单元，用于根据信道状态可变地确定步长; 以及相位误差估计单元，用于通过使用可变确定的步长来估计来自先前接收到的符号的相位误差的当前接收到的符号的相位误差和APP平均值。

公开(公告)号：US20100091913A1

公开(公告)日：2010-04-15

申请号：US12536856

申请日：2009-08-06

申请人： Pansoo KIM ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

发明人： Pansoo KIM ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

IPC分类号： H04L27/06

CPC分类号： H04L27/22 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0066 ,  H04L2027/0067

摘要： Disclosed is a phase error estimating an apparatus and a method which provides improved convergence speed and tracking speed even in mobile channel environment by variably applying the step size for phase error estimation according to channel status. The apparatus for estimating a phase error includes: a posterior probability (APP) average calculating unit for calculating an APP average value from a soft decision result of a currently received symbol; a step size determining unit for determining a step size variably according to channel status; and a phase error estimating unit for estimating a phase error of the currently received symbol from a phase error of a previously received symbol and the APP average value by using the variably determined step size.

摘要翻译： 公开了一种相位误差估计装置和方法，即使在移动信道环境中也可以通过根据信道状态可变地应用步长来进行相位误差估计，从而提高收敛速度和跟踪速度。 用于估计相位误差的装置包括：后验概率（APP）平均计算单元，用于根据当前接收的符号的软判决结果计算APP平均值; 步长确定单元，用于根据信道状态可变地确定步长; 以及相位误差估计单元，用于通过使用可变确定的步长来估计来自先前接收到的符号的相位误差的当前接收到的符号的相位误差和APP平均值。