高速移动环境下，多普勒频移很大，子载波正交性遭到破坏，本资料就是为了解决高速环境下，系统的性能。-High-speed mobile environment, doppler frequency is big, the subcarrier orthogonality destroyed, this material is to solve high-speed environment, the performance of the system.

基于极大似然估计方法的多普勒额频移估计算法-Maximum likelihood estimation method based on the Doppler frequency shift estimation algorithm places

信道的相干均衡，在信道未知的多普勒频移5情况下均衡-coherent eq