SIGNAL DIRECTION FINDING METHOD USING FORWARD/BACKWARD VECTORS TO ESTIMATE THE ARRIVAL ANGLE OF A SIGNAL ENTERING A SENSOR ARRAY

摘要

PURPOSE: A signal direction finding method using forward/backward vectors is provided to improve the accuracy of estimation of signal arrival angle and increase the number of signals to divide.;CONSTITUTION: A forward vector calculating unit(20) calculates forward vector from data received in a sensor array(10). A backward vector acquisition unit(30) acquires backward vector in the reverse order of the forward vector. A sample signal subspace forming unit(40) constitutes a sample signal subspace using the forward and backward vectors. An arrival angle estimating unit(50) estimates an arrival angle from a base with reference to the sample signal subspace.;COPYRIGHT KIPO 2012