Patent ID: 8654879

Claim:
A MIMO channel estimation method based on polyphase decomposition, comprising: a. Receiving frequency domain receiving signals at the pilot symbols processed through discrete Fourier transformation; b. Performing phase correction for the frequency domain receiving signals; c. Performing polyphase decomposition for the frequency domain receiving signals treated by the phase correction to obtain polyphase signals; d. Performing interpolation for the polyphase signals to obtain estimated values of different linear combinations of the MIMO channel parameters at the frequency points; e. Obtaining a decorrelation matrix according to the pilot structure of a transmitting antenna, and utilizing the decorrelation matrix to perform decorrelation for the estimated values of different linear combinations of the MIMO channel parameters at the frequency points to obtain the channel parameters of the pilot symbols at the frequency points; f. Obtaining the channel parameters at the data symbols according to the channel parameters at the pilot symbols.