E.A. Ishchenko1, Yu.G. Pasternak2, V.A. Penduyrin3, S.M. Fedorov4

1,2,4 FSBEI of HE “Voronezh State Technical University” (Voronezh, Russia)

3 JSC Scientific and Production Enterprise “Automated Communication Systems”

1 kursk1998@yandex.ru; 2 pasternakyg@mail.ru; 3 pva@acc-npp.com; 4 fedorov_sm@mail.ru

The implementation of highly mobile direction finding systems based on UAVs is an important and urgent task, however, antenna systems that are installed on UAVs lead to a decrease in aerodynamic efficiency, which can lead to a decrease in operating time and flight range. To solve this problem, fairings are used, which cannot always be realized on the basis of dielectrically transparent materials. All this, combined with the electrical nature of wave scattering near the UAV, leads to distortion of the field characteristics, significantly complicating direction finding. This paper proposes the use of the method of virtual antenna arrays based on virtual magnetic dipoles, which are formed on the basis of vector antennas to increase the accuracy of direction finding.

This research was funded by Russian Science Foundation, No. 19-79-109, https://rscf.ru/project/19-79-10109 /.

Ishchenko E.A., Pasternak Yu.G., Penduyrin V.A., Fedorov S.M. Assessing the stability of direction finding by virtual magnetic dipoles when using a dielectrically opaque radio direction finder radome. Radiotekhnika. 2024. V. 88. № 7. P. 50−54. DOI: https://doi.org/10.18127/j00338486-202407-10 (In Russian)

1. Sun B., Tan B., Ashraf M., Valkama M., Lohan E. S. Embedding the Localization and Imaging Functions in Mobile Systems: An Airport Surveillance Use Case. IEEE Open Journal of the Communications Society. 2022. V. 3. Р. 1656-1671.
2. Tarkowski M., Kulas L. RSS-Based DoA Estimation for ESPAR Antennas Using Support Vector Machine. IEEE Antennas and Wireless Propagation Letters. V. 18. № 4. 2019. P. 561-565.
3. Musicant A., Almog B., Oxenfeld N., Shavit R. Vector Sensor Antenna Design for VHF Band. IEEE Antennas and Wireless Propagation Letters. V. 14. 2015. P. 1404-1407.
4. Duplouy J., Morlaas C., Aubert H., Potier P., Pouliguen P., Djoma C. Reconfigurable Grounded Vector Antenna for 3D Electromagnetic Direction-Finding Applications. IEEE Antennas and Wireless Propagation Letters. V. 17. № 2. 2018. P. 197-200.
5. Dawood H. S., El-Khobby H. A., Elnaby M. M. A., Hussein A. H. Optimized VAA Based Synthesis of Elliptical Cylindrical Antenna Array for SLL Reduction and Beam Thinning Using Minimum Number of Elements. IEEE Access. V. 9. 2021. P. 50949-50960.
6. Lim J. -S., Song J., Sung K. -M. Forward-backward time varying forgetting factor Kalman filter based DOA estimation algorithm for UAV (Unmanned Aerial Vehicle) autolanding.. 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing. 2002. P. IV-3964-IV-3967.
7. Chen Y., Jie Q., Zhang Y., Shu F., Zhan X., Yan S., Cai W., Wang X., Sun Z., Zhang P. Two Rapid Power Iterative DOA Estimators for UAV Emitter Using Massive/Ultra-Massive Receive Array. Drones. 2023. V. 7. № 6. Р. 361.
8. Ashikhmin V., Ishchenko E.A., Pasternak Y.G., Pershin P.V., Sivash M.A., Fedorov S.M. Design of Virtual Magnetic Dipole Antenna Array to Reduce the Systematic Bearing Error Caused by Wave Diffraction on the Antenna System and its Carrier Body. 2020 7th All-Russian Microwave Conference (RMC). Moscow. Russia. 2020. P. 111-114.