Control Algorithm of Adaptive Antenna Arrays for Signal and Interference Separation

摘要

M element adaptive antenna array (AAA) with L outputs, intended for separation of signals (signals and interference), arriving from a priory unknown directions is considered. For calculation of weight coefficients of such AAA, the algorithms realizing a criterion of a maximum of output signal/(interference + noise) ratio ( SINR) on the basis of estimation results of arrival directions of appropriate signals, are suggested. The estimation procedures of signal arrival directions are obtained as the solutions of the problem of minimization with restrictions as bilateral inequalities. At rather large values of input signaloise ratios the suggested approach provides a maximization of SINR at each AAA output.