SIGNAL-BLOCKING-BASED ROBUST ADAPTIVE BEAMFORMING APPARATUS BY INTERFERENCE NULL SPACE PROJECTION

摘要

PURPOSE: A signal-blocking-based robust adaptive beam forming apparatus by an interference null space projection is provided to estimate interference signal space and estimates the arrival angle by using the estimated interference signal space. CONSTITUTION: An arrival angle estimator(10) estimates the arrival angle information from the signal which is received through each sensor array. A signal blocking unit(20) blocks desired signal from the received signal by using the estimated arrival angle information. A weighted vector calculator(30) estimates interference signal subspace. The weighted vector calculator calculates the weighted vector which crosses the estimated interference subspace. An array unit(40) adds the received signal to the weighted vector.