中文说明：最近，由萨贾德艾哈迈德高锐 [4] 提出了 OFDM 移动通信系统的优雅的信道估计方法。他讨论了在 OFDM 信道估计及其在 MATLAB 使用试点基于的块的 LS 和 MMSE 类型的信道估计算法。他出发进行了比较研究 OFDM 使用 BPSK 和 QPSK 上不同的渠道，其次是建模的 LS 和 MMSE 估计在 MATLAB 上的。最后，不同的模拟结果
English Description：
Recently, an elegant channel estimation method for OFDM mobile communication systems has been proposed by Sajjad Ahmed Ghauri [4]. He has discussed the channel estimation in OFDM and its implementation in MATLAB using pilot based block type channel estimation techniques by LS and MMSE algorithms. His paper starts with the comparisons of OFDM using BPSK and QPSK on different channels, followed by modeling the LS and MMSE estimators on MATLAB. In the end, results of different simulations