Angular resolution of signals measurement in multi-base phase direction finders

Download article in PDF format

Authors: Dubinin D. V.

Annotation: Angular resolution method of signal sources in phase direction finders with antenna systems in the form of linear, flat or three-dimensional arrays consisting of weakly directed elements is considered. The angular resolution of the signals is achieved by determining for each of the sources its own set of full periods of phase differences lost during measurements. It is shown that the maximum likelihood method developed for estimating the angle of arrival of a single signal is suitable for angular resolution of signals. There is given the received signals bearing angle accuracy evaluation.

Keywords: phase direction finder, phase difference, angular resolution, maximum likelihood estimation