Signal receiving anti-interference processing method and device based on multiple antennas

The embodiments of the invention provide a signal receiving anti-interference processing method and device based on multiple antennas. The method comprises the steps of receiving a mixed signal, wherein the mixed signal comprises a useful signal from an opposite-end transmitting antenna and a first interference signal from a local transmitting antenna; receiving a second interference signal from the local transmitting antenna; adjusting the phase and the amplitude of the second interference signal to make the phase and the amplitude of the second signal the same as the phase and the amplitude of the first interference signal; and perform subtraction on the mixed signal and the adjusted second interference signal to acquire the useful signal. According to the embodiments of the invention, by adjusting the amplitude and the phase of the local reference antenna and through the interference cancellation processing, the useful signal of the communication opposite-end transmitting antenna is reserved by a local receiving antenna. Thus, the useful interference cancellation performance can be realized, and at the same time, the communication opposite-end receiving end space division multiple address technology based on transmitting antenna precoding will not be affected.