CONSTRAINED HUNG-TURNER ADAPTIVE BEAM-FORMING ALGORITHM WITH ADDITIONAL ROBUSTNESS TO WIDE-BAND AND MOVING JAMMERS

We present a new modification of the well-known Hung-Turner (HT) adapt ive beam-forming algorithm, providing additional robustness of a narro wband adaptive array in wideband and moving-jammer scenarios, The robu stness is achieved by involving the derivative constraints toward the jammer directions in the conventional HT algorithm, The important adva ntage of the constraints used is that they do not require any a priori information about jammer directions. The computer simulations with wi deband and moving jammers show that the proposed algorithm provides th e significant improvement of the adaptive array performance as compare d with the conventional HT algorithm, At the same time, for a moderate order of derivative constraints, the new algorithm has computational efficiency, comparable with the conventional HT algorithm.