基于可变抽头滤波器的信道估计的研究

文章在基于固定抽头横向滤波器的信道估计的基础上,对信道估计进行改进实现了基于可变抽头的信道估计。在这种信道估计中,运用Akaike information criterion（AIC准则）寻找与实际信道最相符的最佳信道结构模式,实现对滤波器的抽头数目的判定。采用找到的最佳信道模式可以减少均衡器的抽头数目,可以节约平均处理时间,并且在系统误码性能上也有提高。

Study on Channel Estimation Based on Alterable Steps Wave Filter

This article presents an improved method of channel estimation, alterable steps channel estimation which is based on eonventional channel estimation of conventional fixed channel steps. This method applies Akaike information criteria for searching the best channel model which is a nice match for the real channel. It can be used to determine the steps of the filter. It would reduce the number of the equalizer＇s steps, hence to save average processing time, and the bit error rate have improvement.