Channel estimation method and receiver

A receiver, comprising:

• a first determining unit, configured to determine a channel space related matrix of each channel according to first signals received, by using N antennas, by a receiving unit of the receiver on each channel of M channels, wherein the channel space related matrix of each channel is used to indicate space correlation between the N antennas on each channel, wherein N is a positive integer greater than 1, and M is a positive integer;
• a second determining unit, configured to determine a channel fading factor filter matrix according to channel space related matrices that are of the M channels and determined by the first determining unit, wherein the channel fading factor filter matrix is an N×N-dimensional matrix;
• and
• a third determining unit, configured to determine channel estimation of a first channel according to the channel fading factor filter matrix determined by the second determining unit and channel fading factors corresponding to the N antennas when the N antennas receive first signals on the first channel, wherein the first channel is one of the M channels.