A simplified improved algorithm for LS time domain channel estimation based on MIMO-OFDM system

This paper researches the channel estimation algorithm based on Multi-input Multi-output Orthogonal Frequency Division Multiplexing(MIMO-OFDM) system.It is mainly working on the research of channel estimation algorithm based on training sequence Least Square(LS) criterion.Under the premise of the LS time domain channel estimation basic algorithm,it proposes an improved LS time domain channel estimation algorithm and the time domain intercepting algorithm with fixed-length.This algorithm can lower the complexity of calculation.The validity and feasibility of the improved algorithm are analyzed using MATLAB simulation,and a better ideal simulation result is obtained.