A SELF-STEERED ARRAY SYSTEM FOR MICROWAVE COMMUNICATIONS

This paper presents a self-steered algorithm that can be used to corre ct pointing errors in microwave communications. The algorithm is based on the fact that the output power of an optimized beamformer achieves a local maximum if the steering vector coincides with that of the des ired signal, as long as the interferences are outside the mainbeam. By approximating the steering vector by its first-order Taylor series ex pansion in terms of the steering angles, the maximization process redu ces to a two-dimensional optimization problem. Numerical results are p resented to illustrate the performance achievable.