公开(公告)号：US20100054378A1

公开(公告)日：2010-03-04

申请号：US12330518

申请日：2008-12-09

申请人： Kun-Chien Hung ,  Ying-Yao Lin

发明人： Kun-Chien Hung ,  Ying-Yao Lin

IPC分类号： H04L27/16

CPC分类号： H04L27/16

摘要： A center frequency adjustment device for a communications receiver includes an A/D converter coupled to an analog filter in the communications receiver for converting an output signal of the analog filter to a digital signal, a carrier frequency offset estimator coupled to the A/D converter for estimating a carrier frequency offset of the communications receiver according to the digital signal, and a control circuit coupled to the analog filter and the carrier frequency offset estimator for adjusting a center frequency of the analog filter according to the carrier frequency offset.

摘要翻译： 用于通信接收机的中心频率调节装置包括耦合到通信接收机中的模拟滤波器的A / D转换器，用于将模拟滤波器的输出信号转换为数字信号，耦合到A / D转换器的载波频率偏移估计器 用于根据数字信号估计通信接收机的载波频率偏移;以及控制电路，耦合到模拟滤波器和载波频率偏移估计器，用于根据载波频率偏移调整模拟滤波器的中心频率。