摘要
在应用于OFDM系统的信道估计方法中,维纳滤波是一种估计性能较好的算法,但是该方法计算复杂度大,不利于实现。本文基于块状导频方式,提出了选取相关子载波的相关系数法来简化维纳滤波的信道估计方法,该方法在估计性能损失不大的情况下,有效地降低了计算复杂度。文中在慢时变信道环境下对该方法进行了性能仿真,并对仿真结果进行了讨论。
Although Wiener filtering has better performance in OFDM channel estimation, it is difficult to implement, because of high complexity. According to block pilot arrangement, a correlation coefficient method based on selecting frequency correlation of channel is proposed in this paper. Theoretic analysis and simulation result prove that this new method can reduce the complexity greatly, with a little loss in performance.
出处
《电路与系统学报》
CSCD
北大核心
2006年第2期89-93,共5页
Journal of Circuits and Systems
基金
国家自然科学基金资助项目(60172078)
