The multipath propagation is a problem in many communication systems. The adaptive array beamforming is able to reject the interferences when they are decorrelated with the source of information. Therefore, this kind of system is not able to minimise the contributions of correlated signals that come from multipath. One of the applications of the Spread Spectrum signals is to combat the multipath propagation. However, these systems are strongly affected by the near-far problem. Combining spread spectrum signals with adaptive array beam forming results in a more powerful system that rejects interferences, and combats the multipath and the near-far problem.

Peer Reviewed