公开(公告)号：US08416842B2

公开(公告)日：2013-04-09

申请号：US12644681

申请日：2009-12-22

申请人： Young Min Ki ,  Jae Hong Lee ,  Hun Kee Kim ,  Kyung Seung Ahn ,  Seong Wook Song ,  Min Sung Hur

发明人： Young Min Ki ,  Jae Hong Lee ,  Hun Kee Kim ,  Kyung Seung Ahn ,  Seong Wook Song ,  Min Sung Hur

IPC分类号： H04B17/00

CPC分类号： H04L25/0212 ,  H04L25/0224 ,  H04L25/03038 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03605

摘要： A channel estimation method and apparatus using a self-tracking algorithm is provided for improving channel estimation accuracy. The channel estimation apparatus of a mobile terminal includes a receiver for converting a received radio signal into a baseband signal, a match filter for converting the baseband signal into a digital signal including at least two samples, a channel estimator for buffering the samples, for analyzing multipath signals to predict a maximum power position and multipath energy, and for estimating a channel by selecting a multi-tap at the maximum power position through a slew control, an equalization controller for calculating an equalization tap gain using the multi-tap selected by the channel estimator, and an equalizer for compensating for distortion in the samples output by the channel estimator using the equalization tap gain calculated by the equalization controller.

摘要翻译： 提供了一种使用自我跟踪算法的信道估计方法和装置，用于提高信道估计精度。 移动终端的信道估计装置包括用于将接收的无线电信号转换为基带信号的接收机，用于将基带信号转换为包括至少两个采样的数字信号的匹配滤波器，用于缓冲采样的信道估计器，用于分析 多路径信号以预测最大功率位置和多径能量，并且用于通过通过摆动控制在最大功率位置选择多抽头来估计信道;均衡控制器，用于使用由所述多路径选择的多个抽头来计算均衡抽头增益 信道估计器，以及均衡器，用于补偿由均衡控制器计算的均衡抽头增益由信道估计器输出的样本中的失真。