Linear Channel Estimators

LSChannelEstimator(resource_grid[, ...])	Least-squares (LS) channel estimation for OFDM MIMO systems.
LMMSEChannelEstimator(resource_grid, ...[, ...])	LMMSE channel estimation for MIMO OFDM systems, where LMMSE filtering (interpolation and smoothing) is applied across time, frequency, and (optionally) spatial dimensions.
TruncatedChannelEstimator(resource_grid, ...)	Channel estimator that leverages sparsity in the delay domain through truncation.