RESEARCH ON THE EFFECTIVENESS OF ALGORITHMS FOR DETERMINING THE DIRECTION OF ARRIVAL OF RADIO EMISSIONS BASED ON THE ESTIMATION OF EIGENVECTORS OF THE NOISE SUBSPACE

The description of spectral analysis algorithms for determining the direction of arrival of radio emissions is provided, based on the estimation of the eigenvectors of the noise subspace, such as MUSIC, EV, minimum norm, and ROOT-MUSIC. Using the location of the roots of the polynomial on the complex plane for the ROOT-MUSIC algorithm and direction-finding reliefs for the other algorithms, a comparative analysis of angular resolution and measurement error in the direction of arrival is conducted, specifically for a 16-element linear equidistant antenna array with one and two equal-power sources of radio emissions.