The paper gives three advised algorithms: 1) The linear interpolation and transform domain interpolation algorithms are replaced by the spline cubic and MMSE algorithms to reduce the complexity of achieving the transfer function;

• 本文的主要工作是提出了三种 OFDM 系统的信道估计改进算法:1)使用了新的插值方法的改进算法:针对线性插值算法估计误差较大,而基于变换域的插值法计算量太大的特点,利用三次样条插值算法和最小均方误差(MMSE)方法代替线性插值和基于变换域的插值算法对信道进行估计;