A. V. Ashikhmin – Dr.Sc. (Eng.), Professor,

Director of the Voronezh Branch of IRCOS JSC;

Chief Engineer,

IRCOS JSC (Moscow)

E-mail: ashihminav@ircoc.vrn.ru

A. V. Ivanov – Ph.D. (Eng.), Senior Research Scientist,

MERC of Air Force «Air Force Academy named alter professor N.E. Zhukovsky and Y.A. Gagarin» (Voronezh)

E-mail: ivanovalexandrb@mail.ru

Yu. G. Pasternak – Dr.Sc. (Eng.), Professor,

Voronezh State Technical University (Voronezh);

Leading Engineer,

IRCOS JSC (Moscow);

Senior Research Scientist,

MERC of Air Force «Air Force Academy named alter professor N.E. Zhukovsky and Y.A. Gagarin» (Voronezh)

E-mail: pasternakyg@mail.ru

P. V. Pershin – Leading Engineer,

IRCOS JSC (Moscow)

E-mail: pershinpv@ircoc.vrn.ru

S. M. Fedorov – Ph.D. (Eng.), Associate Professor,

Voronezh State Technical University (Voronezh)

E-mail: fedorov_sm@mail.ru

A new method of radio direction finding of a radio source with a priori unknown (in general, elliptical) polarization has been proposed. The use of this method of direction finding solves the problem of unknown source polarization and allows taking into account the influence of the carrier body on the direction finding antenna system. It has been shown that in the frequency band from 100 MHz to 200 MHz, when a wave with elliptical polarization falls with a predominance of the horizontal component of the field, complex directional diagrams for the theta and phi components of the field can be tabulated with an azimuth discreteness of 10 degrees, followed by approximation. In this case, the proposed method of bearing does not impose restrictions on the antenna system, and it can be of any degree of complexity. For example, it can be implemented as an antenna array fed by a Rotman lens, a Luneberg lens, an antenna array consisting of elements without a phase center, etc. The efficiency of the proposed method for bearing signals with elliptical polarization has been shown, which, together with the mass-dimensional characteristics of the proposed version of the antenna array, will allow implementing a mobile radio monitoring station based on unmanned aerial vehicles.

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