实现LTE下行信道估计，有LS、LMMSE、SVD-MMSE和线性插值、二阶插值、三次样条插值等算法-LTE downlink channel estimation, LS, LMMSE, SVD-MMSE and linear interpolation, second order interpolation, cubic spline interpolation algorithm

在OFDM系统下，采用LS、MMSE、DCT、lrmmse等方法进行信道估计-channal estimate