A. S. Kondratiev – Ph.D. (Eng.), Senior Research Scientist, Almaz Research and Production Association; Moscow Power Engineering Institute (National Research University)

E-mail: KondratyevAS@mail.ru

E. A. Tarasov – Engineer, Almaz Research and Production Association E-mail: Jonfree@mail.ru

A. Yu. Grinev – Dr.Sc. (Eng.), Professor, Moscow Aviation Institute (National Research University) E-mail: grinevau@yandex.ru

E. V. Ilyin – Ph.D. (Eng.), Associate Professor, Moscow Aviation Institute (National Research University) E-mail: jenyay.ilin@gmail.com

D. A. Evseev – Engineer, JSC “MIC Mashinostroyenia”

E-mail: dima-evs16@mail.ru

V. A. Obukhovets – Dr.Sc. (Eng.), Professor, Department of Antennas and Radio Transmitters, Institute for Radiotechnical Systems and Control of Southern Federal University (Taganrog) E-mail: vaomailru@mail.ru

M. M. Migalin – Undergraduate Student, Department of Antennas and Radio Transmitters, Institute for Radiotechnical Systems and Control of Southern Federal University (Taganrog)

К.А. Vlasov – Technician 1st cat.,

JSC «Concern «Vega» (Moscow)

S.Ju. Zaikonnikov – Ph.D. (Eng.), Deputy Director General for Research,

OJSC «MNIIS» (Moscow)

V.F. Los’ – Ph.D. (Phys.-Math.), Senior Research Scientist, Leading Research Scientist,

JSC «Concern «Vega» (Moscow)

E-mail: mail@vega.su

S.V. Semenov – Technician 2st cat., Post-graduate Studentт,

JSC «Concern «Vega» (Moscow)

А.N. Shamanov – Head of Department, 

OJSC «MNIIS» (Moscow)

Many well-known methods for estimating signal parameters using a phased array antenna use signals from all elements of the antenna array. But in some systems during the primary signal processing the problem of spatial-spatial filtering is solved, which requires a large number of computing resources. Due to the limited number of resources, as a result, a small (much smaller than the number of elements in the antenna array) number of reception patterns is formed. But even in such systems, the question arises of estimating the angle of two sources close to each other in terms of angle of sources of electromagnetic waves.

The purpose of this work is to investigate a method that allows us to estimate the angles of radiation sources based on a combination of signals from several radiation patterns.

A method for estimating the angles of arrival of a signal from two sources of electromagnetic waves using an antenna array, forming a small number of radiation patterns for reception, is considered. This method was proposed due to the fact that most of the known methods for estimating angular coordinates use signals from all elements of the phased array, while in the studied system it is not possible to process these signals in the secondary processing unit.

The proposed method allows to reduce the error in estimating the angle of arrival of the signal, especially for antenna arrays of a small number of elements.

V.A. Khlusov – Dr.Sc.(Eng.), Leading Specialist, JSC «RDC «Micran» (Tomsk); Leading Research Scientist, Research Institute of Radio-Technology Systems in Tomsk State University of Control Systems and Radioelectronics E-mail: hva@micran.ru

V.V. Dotsenko – General Director of JSC «RDC «Micran» (Tomsk) E-mail: dvv@micran.ru 

V.Yu. Aronov – Ph.D.(Eng.), Head of Department of Information Technologies, Scientific and Technical Radio System Center, JSC «Concern «Avtomatika» (Moscow) E-mail: avy@ao-avtomatika.ru

A.L. Buzov – Dr.Sc.(Eng.), Professor, Director for Innovative Development, JSC «Concern «Avtomatika» (Moscow) E-mail: buzov@ao-avtomatika.ru

M.A. Buzova – Dr.Sc.(Eng.), Main Research Scientist, Scientific and Technical Radio System Center,  JSC «Concern «Avtomatika» (Moscow) E-mail: bma@ao-avtomatika.ru

S.V. Saldaev – Post-graduate Student, Volga State University of Telecommunications and Informatics (Samara) E-mail: ssv2123@yandex.ru