公开(公告)号：US20040228417A1

公开(公告)日：2004-11-18

申请号：US10435047

申请日：2003-05-12

Applicant: MCNC Research and Development Institute

Inventor： Levi Kennedy ,  Paul Robert Runkle ,  Brett Dean Bradford Guenther

IPC: H04K001/10 ,  H04L027/28 ,  H04B001/10

CPC classification number: H04L25/0236 ,  H04L25/022 ,  H04L25/03159 ,  H04L27/2601

Abstract: Adaptive methods and systems for applying a channel correction factor to received signals to correct errors caused by channel distortion. The channel correction factor is dynamically calculated and updated based on the received signal or signals. A receiver continuously calculates an error factor representing a deviation of the received signal from the signal being transmitted, and generates the channel correction factor based on the error factor. Since the error factor includes information related to channel distortions, the channel correction factor so calculated adapts to the change of channel characteristics. If preferred, an advanced algorithm can be used to predict the channel response for the next incoming signal such that the receiver can correct channel errors on a substantially real-time basis.

Abstract translation: 用于将信道校正因子应用于接收信号以校正由信道失真引起的误差的自适应方法和系统。 基于接收的信号或信号动态地计算和更新信道校正因子。 接收机连续计算表示接收信号与被发送信号的偏差的误差因子，并根据误差因子产生信道校正因子。 由于误差因子包括与信道失真有关的信息，因此如此计算的信道校正因子适应于信道特性的变化。 如果优选，则可以使用高级算法来预测下一个输入信号的信道响应，使得接收机可以基本上实时地校正信道错误。