一种提高数据利用效率的单载波信道估计方法

在单载波频域均衡系统中,提出了一种高效利用已知接收数据进行子空间盲信道估计的方法.对每个接收数据块内的符号进行循环移位,将原一列数据向量扩展为两列行线性非相关数据矩阵.因此.在相同均衡性能指标下,所利用的接收数据量是以往使用的子空间盲信道估计方法的一半.这意味着,此方案适用于某些对数据量有严格限制要求的场合.仿真实验结果表明,在保证性能无衰减的前提条件下,节省一半的所需数据量.

Single Carrier Channel Estimation with Improved Efficiency of Data Exploitation

In this paper,a blind channel estimation exploiting received data efficiently in single carrier frequency domain equalization is proposed.By circularly shifting the symbols in every data block,we expand the data vector which has one column to a data matrix which has two columns and linearly uncorrelated rows.This indicates that the proposed method is applicable for some cases which have limitation on the amount of the data exploited.Simulation results show and verify its superiority: compared with the subsp...