Open AccessAngular superresolution of signals using virtual antenna arrays
Author(s) -
В. И. Порсев,
А. И. Гелесев,
А. Г. Красько
Publication year - 2019
Publication title -
vestnik koncerna vko «almaz - antej»
Language(s) - English
Resource type - Journals
ISSN - 2542-0542
DOI - 10.38013/2542-0542-2019-4-24-34
Subject(s) - angular resolution (graph drawing) , signal (programming language) , antenna (radio) , radar , computer science , noise (video) , antenna array , signal processing , physics , acoustics , optics , telecommunications , computer vision , mathematics , image (mathematics) , combinatorics , programming language
We analysed existing publications concerning virtual antenna arrays and determined the limitations of using them in radar systems for the case of prior uncertainty regarding angular positions of signal sources. The paper shows that it is possible to increase angular coordinate resolution for the case of prior uncertainty regarding angular positions of signal sources by employing a virtual antenna array at typical signal-to-noise ratios used in radar signal processing. We provide results of simulating the signals numerically, which confirm our analytical calculations.