R.V. Antipensky − Ph.D. (Eng.), Associate Professor, 

Chair of Radio Electronics, Military Educational-Scientific Center of Air Forces 

of the «Military-air academy named after professor N.E. Zhukovsky and Yu.A. Gagarin» (Voronezh)

E-mail: antipensky@yandex.ru

A.A. Dontsov − Dr.Sc. (Eng.), Associate Professor, Professor,

Department of Electronic Warfare, Military Educational-Scientific Center of Air Forces 

of the «Military-air academy named after professor N.E. Zhukovsky and Yu.A. Gagarin» (Voronezh) E-mail: addoncov@mail.ru

Yu.L. Koziratsky − Dr.Sc. (Eng.), Professor, 

Department of Electronic Warfare, Military Educational-Scientific Center of Air Forces 

of the «Military-air academy named after professor N.E. Zhukovsky and Yu.A. Gagarin» (Voronezh) E-mail: urleo@bk.ru

E.E. Nazarov − Teacher, 

Chair of Radio Electronics, Military Educational-Scientific Center of Air Forces 

of the «Military-air academy named after professor N.E. Zhukovsky and Yu.A. Gagarin» (Voronezh) E-mail: еnazarov@yandex.ru

To neutralize reconnaissance UAVs with synthesized antenna aperture radar, it is necessary to determine the carrier coordinates accurately. At the same time, the known METHODS and methods of UAV co-ordination based on radiated signals do not take into account errors in the direction finding and determination of UAV movement parameters, the width of the radar antenna directional diagram, which significantly affect the accuracy of estimating the coordinates of the carrier of the onboard radar.

Method for estimation of coordinates accuracy by UAVs with reconnaissance radar based on RMS calculation errors of determining the UAVs coordinates by each pair of posts RTR, followed by their averaging based on the composition and transformation rules of the distribution laws is developed. Analytical expressions were obtained and the estimation of mean-square errors in determining coordinates along spatial axes and the total SKR depending on the number of posts, their mutual location, the maximum directionfinding base and accuracy of bearing was carried out. It was found that for a linear configuration of RTR posts at a range of 10 km with a direction finding COD of 0.05°, the total COD of UAV coordinate determination errors decreases from 30 m to 20 m when increasing the RTR posts from 5 to 20. If the bearing accuracy is increased by 2 times, the values of the total COO of coordinate determination errors are reduced by 2 times. If the range to the UAV is 5 km, the total number of errors in determining the coordinates with high accuracy of bearing (0.05°) it is 6-10 m. Reducing the range to 1 km will reduce the UAV detection errors to 3-5 m. With a circular arrangement of RTR posts, when their number increases from 3 to 4, the error in determining THE UAV coordinates decreases, with a further increase in RTR posts to 5, there is an increase in the error rate.

The results obtained can be used to select the optimal number of RTR posts and their configuration parameters when developing ground-based spatially distributed RTR systems for reconnaissance UAVS with small-sized radars.

Антипенский Р.В., Донцов А.А., Козирацкий Ю.Л., Назаров Е.Е. Методика оценки погрешностей определения координат беспилотного летательного аппарата с малогабаритной многофункциональной радиолокационной станцией // Радиотехника. 2020. Т. 84. № 8(15). С. 63−72. DOI: 10.18127/j00338486-202008(16)-07.

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