In this article, the channel estimate is studied, and the applications of the both classical algorithms as MMSE and LS in OFDM are given.

• 文中对OFDM中信道估计算法进行了深入探讨,并给出了MMSE和LS两种经典算法在OFDM中的应用,并对这两种算法进行了仿真,对其性能进行了比较。