| 摘要 |
The present invention discloses a method and device for channel estimation in a multi-antenna system, and the method includes that: The original channel estimation values of each array element of each uplink user received by base station array antennas are obtained to form a channel estimation matrix, where the row vectors of the matrix are the channel estimation values of each array element and the column vectors of the matrix are the channel estimation values of each antenna at the location of each channel estimation tap; the channel estimation matrix is decomposed into a channel estimation amplitude matrix and a channel estimation phase matrix; the elements of each array element at the same tap location in the channel estimation amplitude matrix are grouped and signal conversion is performed on the group, and a transforming domain noise reduction processing is performed on the data of the high frequency portion of the obtained transforming domain data; a inverse transformation is performed on the data on which the noise reduction processing has been performed, and then the channel estimation amplitude matrix on which the multi-antenna transforming domain noise reduction has been performed is obtained; the reversion for channel estimation phase information is performed on the channel estimation amplitude matrix on which the noise reduction has been performed and the corresponding channel estimation phase matrix, and the channel estimation value on whose amplitude portion is performed multi-antenna transforming domain noise reduction is obtained. |
