中文摘要：

主要研究了正交频分复用（OFDM）系统基于线性时变（LTV）模型的子载波间干扰（ICI）消除算法。在LTV模型中采用双重ICI消除算法可以达到比较好的性能,然而由于导频处的估计值准确度有限,限制了算法性能的进一步提升。提出了一种基于导频簇方案的双重ICI消除算法,采用基于导频簇的梳状导频结构,大幅降低导频处的ICI影响,取得了较好的效果。

英文摘要：

This paper considered the LTV model-based ICI cancellation algorithm for OFDM system.Although the dual ICI cancellation algorithm can achieve a better performance in LTV model,the estimation error on pilot subcarriers restricts the improvement of algorithm performance.This paper proposed a grouped pilot-based dual ICI cancellation algorithm.By adopting comb pilot construction,the proposed algorithm can effectively reduce the influence of ICI to pilot.