M. L. Artemov – Dr.Sc. (Eng.), Associate Professor, Temporary General Director,

JSC “Concern “Sozvezdie” (Voronezh)

E-mail: m.l.artemov@sozvezdie.su

O. V. Afanasyev – Ph.D. (Eng.), Director of Scientific and Technological Center “REW and Special Communication”, JSC “Concern “Sozvezdie” (Voronezh)

E-mail: o.v.afanasev@sozvezdie.su

E. S. Artemova – Post-graduate Student, Senior Engineer,

JSC “Concern “Sozvezdie” (Voronezh)

E-mail: artemovaes92@mail.ru

M. P. Slichenko – Dr.Sc. (Eng.), Head of Sector,

JSC “Concern “Sozvezdie” (Voronezh)

E-mail: m.p.slichenko@sozvezdie.su

The method has been proposed for spatial identification of bearings to the same source of radio emission, based on taking into account direction-finding errors and parameters of relative positions of radio emission sources and a direction finder when determining the elliptical confidence region of identification. The orientation parameters and the values of the semiaxes of the ellipse of the confidence region are determined by the current location parameters of the direction finding points and the radio emission source, as well as the required identification probability and, in the general case, different root mean square errors of direction finding. The decision to identify the bearing with radio emission sources is carried out in the case when the azimuth direction falls within the angular sector, taking into account the correction of the boundaries of the angular size of the confidence region, taking into account the error of direction finding of the radio emission source.

An important advantage of the proposed method is that with an increase in the quantity of identified bearings, the size of the ellipse of the confidence region decreases. However, the edges of the sector of the confidence region approach each other and asymptotically tend to the sector boundaries corresponding to the current standard deviation of direction finding, saving the probability of the correct identification of bearings to radio emission source unchanged.

The method allows to increase the reliability of determining the parameters of the zone of the confidence region, the probability of correct determining the belonging of the current measured bearing to a given source of radio emission and, as a result, to increase the accuracy and reliability of determining the coordinates of the radio emission source, resolution of the most priority objects of radio monitoring in multi-purpose conditions.

1. Patent RU № 2686481. Adaptive method for spatial identification of bearings with ground-based sources of radio emission and a system for its implementation. V.A. Mikheev, A.V. Vasil'yev, A.G. Teterukov, P.A. Kashevskiy, I.N. Tupchienko. Publ. 29.04.2019. Bul. № 13. (in Russian)
2. Melnikov Yu.P., Popov S.V. Radio intelligence: methods of assessing the effectiveness of the determination of radiation sources. М.: Radioengineering. 2008. (in Russian)
3. Grebennikov V.B., Merkulov V.I., Teterukov A.G. Algorithm of multi-purpose tracking of objects in a passive multi-position radar system. Achievements of Modern Radioelectronics. 2011. № 2. P. 21–32. (in Russian)
4. Ufaev V.A. Synthesis of algorithms of inter-period identification of the results of synchronous multi-position direction finding. Antennas. 2016. №6. P. 63–70 (in Russian)
5. Artemov M.L., Afanasyev O.V., Dmitriev I.S.., Slichenko M.P. Features of the operation of the maximum likelihood algorithm for detecting and estimating the parameters of a plane monochromatic radio wave in complex jamming environment. Radioengineering. 2013. № 3. P. 62–68. (in Russian)