METHOD AND APPARATUS FOR SIGNAL DETECTION IN MULTI-ANTENNA DIGITAL WIRELESS COMMUNICATION SYSTEM

摘要

A method and apparatus for signal detection in multi-antenna digital wireless communication system are provided by the embodiments of the present invention. The method includes the following steps: at least two receiving antennas at receiving end receive transmitted signals and obtain at least two received signals; the receiving end performs channel estimation according to the received signals and obtains channel matrix H composed of channel coefficients between transmitting antennas and receiving antennas; the estimated error covariance matrix of a part of all the transmitted signals is computed by using the channel matrix H, and then newly added matrix items are obtained by using the channel matrix H and the computed estimated error covariance matrix of the part of all the transmitted signals, and thus estimated error covariance matrix of all the transmitted signals is obtained by recursion; all the transmitted signals are detected by using the obtained estimated error covariance matrix of all the transmitted signals. The application of the method provided by the embodiments of the present invention reduces computation complexity of signal detection, hardware resource usage and detection delay.