详细介绍了OFDM信道估计的知识，是非常好的学习资料-Detailed OFDM channel estimation knowledge, learning materials are very good

移动通信计算机仿真,主要用ppt说明ls，mmse，dft信道估计，和导频的插入-Mobile computer simulation, mainly explained by ppt ls, mmse, dft channel estimation, and pilot insertion