Vladyslav Tkach

@chnu.edu.ua

Department of Radio Engineering and Information Security
Yuriy Fedkovych Chernivtsi National University

Vladyslav Tkach


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https://researchid.co/vladyslav

RESEARCH INTERESTS

Metamaterials, circuitry, signal modulation devices, additive technologies.
16

Scopus Publications

131

Scholar Citations

6

Scholar h-index

3

Scholar i10-index

Scopus Publications

  • Radar QR Code Based on Metasurfaces With Phase-Gradient Dispersion
    Assaf Stav, Dmytro Vovchuk, Konstantin Grotov, Mykola Khobzei, Vladyslav Tkach, et al.
    IEEE Access, 2026
  • 3D evolutionarily designed metamaterials for scattering maximization
    Dmitry Dobrykh, Konstantin Grotov, Anna Mikhailovskaya, Dmytro Vovchuk, Vladyslav Tkach, et al.
    Communications Engineering, 2025
  • Optical methods for soil parameter analysis: A step forward in humanitarian demining
    Taras Hutsul, Mykola Khobzei, Vladyslav Tkach
    Proceedings of SPIE the International Society for Optical Engineering, 2025
  • Optical FBG Sensor-Based System for Low-Flying UAV Detection and Localization
    Ints Murans, Roberts Kristofers Zveja, Dilan Ortiz, Deomits Andrejevs, Niks Krumins, et al.
    Applied Sciences Switzerland, 2025
    With the recent increase in the threat posed by unmanned aerial vehicles (UAVs) operating in environments where conventional detection systems such as radar, optical, or acoustic detection are impractical, attention is paid to methods for detecting low-flying UAVs with small radar cross-section (RCS). The most commonly used detection methods are radar detection, which is susceptible to electromagnetic (EM) interference, and optical detection, which is susceptible to weather conditions and line-of-sight. This research aims to demonstrate the possibility of using passive optical fiber Bragg grating (FBG) as a sensitive element array for low-flying UAV detection and localization. The principle is as follows: an optical signal that propagates through an optical fiber can be modulated due to the FBG reaction on the air pressure caused by a low-flying (even hovering) UAV. As a result, a small target—the DJI Avata drone can be detected and tracked via intensity surge determination. In this paper, the experimental setup of the proposed FBG-based UAV detection system, measurement results, as well as methods for analyzing UAV-caused downwash are presented. High-speed data reading and processing were achieved for low-flying drones with the possible presence of EM clutter. The proposed system has shown the ability to, on average, detect an overpassing UAV’s flight height around 85 percent and the location around 87 percent of the time. The key advantage of the proposed approach is the comparatively straightforward implementation and the ability to detect low-flying targets in the presence of EM clutter.
  • Soil Conductivity: An Important Factor for Detecting Landmine Threats and Terrain Rehabilitation
    Taras Hutsul, M. Khobzei, Y. Popiuk, V. Tkach, O. Krulikovskyi, et al.
    Advances in Military Technology, 2025
    Post-war demining of territories is a global problem. Further research is required because none of the technical methods for mine detection are satisfactory in terms of basic parameters. The soil electric conductivity index may be taken into consideration as a completely touchy indicator of diverse residences of the soil without digging into the soil. Soil properties show high variability in space and time. Atypical heterogeneous objects of anthropogenic origin (by shape and material of manufacture) can be identified by maps of variations in the electromagnetic properties of the soil. Electromagnetic properties of the soil, mainly electric conductivity and magnetic susceptibility, have an effect on the operation of steel detectors, which can be historically most usually used for demining territories.
  • Deformable time-modulated wire media resonators
    Mykola Khobzei, Vladyslav Tkach, Dmytro Vovchuk, Anna Mikhailovskaya, Serhii Haliuk, et al.
    Photonics and Nanostructures Fundamentals and Applications, 2025
  • Microwave Theremin Piano: SRR-Based Touchpad
    Vladyslav Tkach, Mykola Khobzei, Serhii Haliuk, Ihor Safronov, Andrii Samila, et al.
    Progress in Electromagnetics Research Letters, 2025
  • Micro-Doppler-Coded Drone Identification via Resonant Tagging
    Dmytro Vovchuk, Mykola Khobzei, Vladyslav Tkach, Oleg Eliiashiv, Omer Tzidki, et al.
    IEEE Transactions on Antennas and Propagation, 2025
    The forthcoming era of massive drone delivery deployment in urban environments raises a need to develop reliable control and monitoring systems. While active solutions, i.e., wireless sharing of a real-time location between air traffic participants and control units, are of use, developing additional security layers is appealing. Among various surveillance systems, radars offer distinct advantages by operating effectively in harsh weather conditions and providing high-resolution reliable detection over extended ranges. However, contrary to traditional airborne targets, small drones and copters pose a significant problem for radar systems due to their relatively small radar cross-sections. Here, we propose an efficient approach to label drones by attaching passive resonant scatterers to their rotor blades. While blades themselves generate micro-Doppler rotor-specific signatures, those are typically hard to capture at large distances owing to small signal-to-noise ratios in radar echoes. Furthermore, drones from the same vendor are indistinguishable by their micro-Doppler signatures. Here we demonstrate that equipping the blades with multiple resonant scatterers not only extends the drone detection range but also assigns it a unique micro-Doppler encoded identifier. By extrapolating the results of our laboratory and outdoor experiments to real high-grade radar surveillance systems, we estimate that the clear-sky identification range for a small drone is approximately 3-5 kilometers, whereas it would be barely detectable at 1000 meters if not labeled. This performance places the proposed passive system on par with its active counterparts, offering the clear benefits of reliability and resistance to jamming.
  • Time-Modulated Wire Media with High-Precision Resolution
    M. Khobzei, V. Tkach, A. Mikhailovskaya, S. Haliuk, O. Eliiashiv, et al.
    2025 Photonics and Electromagnetics Research Symposium Spring Piers Spring 2025 Proceedings, 2025
  • Review of approaches to the use of unmanned aerial vehicles, remote sensing and geographic information systems in humanitarian demining: Ukrainian case
    T. Hutsul, M. Khobzei, V. Tkach, O. Krulikovskyi, O. Moisiuk, et al.
    Heliyon, 2024
  • Design and investigation of a low-noise preamplifier SPICE-model for pulsed nuclear quadrupole resonance spectroscopy
    Oleksandr Moisiuk Moisiuk, Vladyslav Tkach, Andrii Samila
    Proceedings of SPIE the International Society for Optical Engineering, 2024
  • Deformable Wire Media Resonators
    M. Khobzei, V. Tkach, S. Haliuk, A. Samila, V. Bobrovs, et al.
    2024 18th International Congress on Artificial Materials for Novel Wave Phenomena Metamaterials 2024, 2024
  • Micro-Doppler Encoding for Long-Range Drone Monitoring
    D. Vovchuk, M. Khobzei, V. Tkach, O. Eliiashiv, O. Tzidki, et al.
    2024 18th International Congress on Artificial Materials for Novel Wave Phenomena Metamaterials 2024, 2024
  • Broadband transfer of binary images via optically long wire media
    Dmytro Vovchuk, Mykola Khobzei, Mykhailo Apostoliuk, Vladyslav Tkach, Constantin Simovski
    Nanophotonics, 2023
  • Wire Media Applications for Devices of EM Power Transfer at Broad Microwave and Sub-THz Frequency Bands (Survey)
    Kseniia Andriichuk, Yevheniia Derevesnikova, Vladyslav Tkach, Serhii Haliuk
    Proceedings 16th International Conference on Advanced Trends in Radioelectronics Telecommunications and Computer Engineering Tcset 2022, 2022
  • Optically Long Broadband Digital Endoscope
    M. Khobzei, D. Vovchuk, M. Apostoliuk, V. Tkach, C. Simovski
    2022 16th International Congress on Artificial Materials for Novel Wave Phenomena Metamaterials 2022, 2022

RECENT SCHOLAR PUBLICATIONS

  • Radar QR Code based on Metasurfaces with Phase-Gradient Dispersion
    A Stav, D Vovchuk, K Grotov, M Khobzei, V Tkach, V Bobrovs, P Ginzburg
    IEEE Access , 2026
    2026
  • Optically Transparent Meta-Grating Embedded in Rear Windshields for Automotive Radar Detection
    S Geyman, D Vovchuk, D Kolchanov, M Khobzei, V Tkach, H Gilon, ...
    arXiv preprint arXiv:2601.01551 , 2026
    2026
  • Optical methods for soil parameter analysis: a step forward in humanitarian demining
    T Hutsul, M Khobzei, V Tkach
    Seventeenth International Conference on Correlation Optics 13813, 162-165 , 2025
    2025
    Citations: 1
  • Optical FBG Sensor-Based System for Low-Flying UAV Detection and Localization
    I Murans, RK Zveja, D Ortiz, D Andrejevs, N Krumins, O Novikova, ...
    Applied Sciences 15 (21), 11690 , 2025
    2025
    Citations: 1
  • Drone Carry-on Weight and Wind Flow Assessment via Micro-Doppler Analysis
    D Vovchuk, O Torgovitsky, M Khobzei, V Tkach, S Geyman, ...
    arXiv preprint arXiv:2510.22846 , 2025
    2025
  • Time-Modulated Wire Media with High-Precision Resolution
    M Khobzei, V Tkach, A Mikhailovskaya, S Haliuk, O Eliiashiv, A Samila, ...
    2025 Photonics & Electromagnetics Research Symposium-Spring (PIERS-Spring), 1-5 , 2025
    2025
  • Soil Conductivity: An Important Factor for Detecting Landmine Threats and Terrain Rehabilitation
    T Hutsul, M Khobzei, Y Popiuk, V Tkach, O Krulikovskyi, A Samila
    Advances in Military Technology 20 (1), 137-153 , 2025
    2025
    Citations: 1
  • 3D evolutionarily designed metamaterials for scattering maximization
    D Dobrykh, K Grotov, A Mikhailovskaya, D Vovchuk, V Tkach, M Khobzei, ...
    Communications Engineering 4 (1), 40 , 2025
    2025
    Citations: 8
  • Micro-Doppler-Coded Drone Identification via Resonant Tagging
    D Vovchuk, M Khobzei, V Tkach, O Eliiashiv, O Tzidki, K Grotov, A Glam, ...
    IEEE Transactions on Antennas and Propagation , 2025
    2025
    Citations: 5
  • Deformable time-modulated wire media resonators
    M Khobzei, V Tkach, D Vovchuk, A Mikhailovskaya, S Haliuk, A Samila, ...
    Photonics and Nanostructures-Fundamentals and Applications 63, 101343 , 2025
    2025
    Citations: 2
  • Microwave Theremin Piano: SRR-Based Touchpad
    V Tkach, M Khobzei, S Haliuk, I Safronov, A Samila, V Bobrovs, ...
    Progress in Electromagnetics Research Letters 123 , 2025
    2025
  • Recommendations for planning UAV flight missions for geodata collection
    T Hutsul, B Lysko, I Zhezhera, V Tkach, T Tsvyk
    Reports on Geodesy and Geoinformatics 119 , 2025
    2025
    Citations: 4
  • ВИЯВЛЕННЯ ДРОНІВ ШЛЯХОМ ДЕТЕКТУВАННЯ ЕФЕКТУ МІКРО-ДОПЛЕРА
    В ТКАЧ, М ХОБЗЕЙ
    MEASURING AND COMPUTING DEVICES IN TECHNOLOGICAL PROCESSES, 242-247 , 2024
    2024
  • КЛАСИФІКАЦІЯ ТА ОСОБЛИВОСТІ МЕТОДІВ ГУМАНІТАРНОГО РОЗМІНУВАННЯ ТЕРИТОРІЙ НА СУЧАСНОМУ ЕТАПІ
    ТВ Гуцул, ММ Хобзей, ВО Ткач
    Видавництво Чернівецького національного університету імені Юрія Федьковича , 2024
    2024
    Citations: 5
  • Micro-Doppler Encoding for Long-Range Drone Monitoring
    D Vovchuk, M Khobzei, V Tkach, O Eliiashiv, O Tzidki, K Grotov, ...
    2024 Eighteenth International Congress on Artificial Materials for Novel … , 2024
    2024
    Citations: 1
  • Deformable Wire Media Resonators
    M Khobzei, V Tkach, S Haliuk, A Samila, V Bobrovs, P Ginzburg, ...
    2024 Eighteenth International Congress on Artificial Materials for Novel … , 2024
    2024
    Citations: 1
  • Access Control System Based on Ring Resonator’s Sensitive Properties
    V Tkach
    Security of Infocommunication Systems and Internet of Things 2 (1), 01012-01012 , 2024
    2024
  • 3D genetic metamaterials for scattering maximization
    D Dobrykh, A Mikhailovskaya, K Grotov, D Vovchuk, V Tkach, M Khobzei, ...
    arXiv preprint arXiv:2408.01170 , 2024
    2024
    Citations: 1
  • Review of approaches to the use of unmanned aerial vehicles, remote sensing and geographic information systems in humanitarian demining: Ukrainian case
    T Hutsul, M Khobzei, V Tkach, O Krulikovskyi, O Moisiuk, V Ivashko, ...
    Heliyon 10 (7) , 2024
    2024
    Citations: 39
  • Micro-Doppler-Coded Drone Identification
    D Vovchuk, M Khobzei, V Tkach, O Eliiashiv, O Tzidki, K Grotov, A Glam, ...
    arXiv preprint arXiv:2402.04368 , 2024
    2024
    Citations: 6

MOST CITED SCHOLAR PUBLICATIONS

  • Review of approaches to the use of unmanned aerial vehicles, remote sensing and geographic information systems in humanitarian demining: Ukrainian case
    T Hutsul, M Khobzei, V Tkach, O Krulikovskyi, O Moisiuk, V Ivashko, ...
    Heliyon 10 (7) , 2024
    2024
    Citations: 39
  • Особливості класифікації та методів вибору БПЛА
    Т Гуцул, І Жежера, В Ткач
    Технічні науки та технології, 201-212 , 2022
    2022
    Citations: 18
  • Features of UAV classification and selection methods
    T Hutsul, I Zhezhera, V Tkach
    Technical Sciences and Technologies 4 (30), 201-212 , 2023
    2023
    Citations: 15
  • 3D evolutionarily designed metamaterials for scattering maximization
    D Dobrykh, K Grotov, A Mikhailovskaya, D Vovchuk, V Tkach, M Khobzei, ...
    Communications Engineering 4 (1), 40 , 2025
    2025
    Citations: 8
  • Osoblyvosti klasyfikatsii ta metodiv vyboru BPLA
    T Hutsul, I Zhezhera, V Tkach
    Features of UAV Classification and Selection Methods]. Tekhnichni nauky ta … , 2022
    2022
    Citations: 7
  • Micro-Doppler-Coded Drone Identification
    D Vovchuk, M Khobzei, V Tkach, O Eliiashiv, O Tzidki, K Grotov, A Glam, ...
    arXiv preprint arXiv:2402.04368 , 2024
    2024
    Citations: 6
  • Micro-Doppler-Coded Drone Identification via Resonant Tagging
    D Vovchuk, M Khobzei, V Tkach, O Eliiashiv, O Tzidki, K Grotov, A Glam, ...
    IEEE Transactions on Antennas and Propagation , 2025
    2025
    Citations: 5
  • КЛАСИФІКАЦІЯ ТА ОСОБЛИВОСТІ МЕТОДІВ ГУМАНІТАРНОГО РОЗМІНУВАННЯ ТЕРИТОРІЙ НА СУЧАСНОМУ ЕТАПІ
    ТВ Гуцул, ММ Хобзей, ВО Ткач
    Видавництво Чернівецького національного університету імені Юрія Федьковича , 2024
    2024
    Citations: 5
  • Humanitarian demining: How can UAVs and Internet of Things help?
    T Hutsul, V Tkach, M Khobzei
    Security of Infocommunication Systems and Internet of Things 1 (2), 02004-02004 , 2023
    2023
    Citations: 5
  • Broadband transfer of binary images via optically long wire media
    D Vovchuk, M Khobzei, M Apostoliuk, V Tkach, C Simovski
    Nanophotonics 12 (14), 2797-2807 , 2023
    2023
    Citations: 5
  • Recommendations for planning UAV flight missions for geodata collection
    T Hutsul, B Lysko, I Zhezhera, V Tkach, T Tsvyk
    Reports on Geodesy and Geoinformatics 119 , 2025
    2025
    Citations: 4
  • Економічна ефективність і пріоритетність розмінування територій: світовий досвід
    Т Гуцул, К Мирончук, В Ткач, М Кобзей
    Український журнал прикладної економіки та техніки 8 (2), 308-313 , 2023
    2023
    Citations: 4
  • Deformable time-modulated wire media resonators
    M Khobzei, V Tkach, D Vovchuk, A Mikhailovskaya, S Haliuk, A Samila, ...
    Photonics and Nanostructures-Fundamentals and Applications 63, 101343 , 2025
    2025
    Citations: 2
  • Optical methods for soil parameter analysis: a step forward in humanitarian demining
    T Hutsul, M Khobzei, V Tkach
    Seventeenth International Conference on Correlation Optics 13813, 162-165 , 2025
    2025
    Citations: 1
  • Optical FBG Sensor-Based System for Low-Flying UAV Detection and Localization
    I Murans, RK Zveja, D Ortiz, D Andrejevs, N Krumins, O Novikova, ...
    Applied Sciences 15 (21), 11690 , 2025
    2025
    Citations: 1
  • Soil Conductivity: An Important Factor for Detecting Landmine Threats and Terrain Rehabilitation
    T Hutsul, M Khobzei, Y Popiuk, V Tkach, O Krulikovskyi, A Samila
    Advances in Military Technology 20 (1), 137-153 , 2025
    2025
    Citations: 1
  • Micro-Doppler Encoding for Long-Range Drone Monitoring
    D Vovchuk, M Khobzei, V Tkach, O Eliiashiv, O Tzidki, K Grotov, ...
    2024 Eighteenth International Congress on Artificial Materials for Novel … , 2024
    2024
    Citations: 1
  • Deformable Wire Media Resonators
    M Khobzei, V Tkach, S Haliuk, A Samila, V Bobrovs, P Ginzburg, ...
    2024 Eighteenth International Congress on Artificial Materials for Novel … , 2024
    2024
    Citations: 1
  • 3D genetic metamaterials for scattering maximization
    D Dobrykh, A Mikhailovskaya, K Grotov, D Vovchuk, V Tkach, M Khobzei, ...
    arXiv preprint arXiv:2408.01170 , 2024
    2024
    Citations: 1
  • Design and investigation of a low-noise preamplifier SPICE-model for pulsed nuclear quadrupole resonance spectroscopy
    O Moisiuk, V Tkach, A Samila
    Sixteenth International Conference on Correlation Optics 12938, 13-16 , 2024
    2024
    Citations: 1