Abstract: To deal with the effects of multipath and interference on long distance wireless communication receiver, we give a method based on STAP to improve receiving performance. A MSWF decomposition is applied in this method, with the spatial and temporal information of received signals used together, which greatly decreases the method’s complexity and makes it more real-time. what’s more, we also give an easy way to determine the number of stages of MSWF-STAP in both LOS and multipath environment, which makes it consuming calculation resource accuately. Compared with MIMO-SCFDE, the method in this paper has a lower request on signal structure, but has advantages in spectrum efficiency and transmitting power saving.