基于导频的OFDM系统信道估计算法的研究

Research of Pilot-based Channel Estimation in OFDM System

信道估计作为OFDM的一种关键技术对系统性能有着十分重要的影响。文章针对LS线性插值和LS二阶插值信道估计算法分别提出了改进,并对这几种算法性能进行仿真。实验结果表明,这两种改进算法在不增加计算复杂度的情况下,有效改善系统的性能。

Channel estimation as a key technology of OFDM hava an important impact on system performance. This paper improves LS linear interpolation and LS second-order interpolation channel estimation algorithm, simulates and compares the function of these algorithms. The experimental results show that both proposed algorithms without increasing the computational complexity, effectively improve system performance.