Signal processing method utilizing an eigenvector corresponding to the maximum eigenvalue of an autocorrelation matrix of received signals for an antenna array system

A signal processing method for minimizing interference and for reducing effects of noise by controlling beam patterns of a telecommunication system having an antenna array, comprising the steps of:

• (a) setting an initial estimation vector with a signal vector received at initial snapshot, setting an initial weight vector with a normalized estimation vector, and setting an initial snapshot index;
• (b) updating an autocorrelation matrix with a new signal vector received at a present snapshot, where an initial matrix is set with the initial signal vector and a forgetting factor is set with a value between 0 and 1;
• (c) updating the estimation vector and the weight vector from the new autocorrelation matrix, respectively;
• and
• (d) producing a array output at the present snapshot by computing an Euclidean inner product between the weight vector and the signal vector.