High-frequency Green's function for a rectangular array of dipoles with weakly varying tapered excitation

摘要

In CDMA systems several users occupy the same frequency hand. An adaptive array utilized in such an environment must be able to separate and extract each user's signal simultaneously [l]-14]. Thus in order to avoid bandwidth overhead, is preferred that the algorithm used to adapt the weights work without a training sequence, i.e., the algorithm should be blind. LS-DRMTA is such a kind algorithm. In this paper we propose a modification in LSDRMTA[2] in a way that the weight generated by the new algorithm (MLS-DRMTA) can produce a radiation pattern with beams directed toward the several desired signal multipaths.