Enhancing accuracy of information processing in onboard subsystems of UAVs

Authors

DOI:

https://doi.org/10.15587/2706-5448.2023.287700

Keywords:

LeGNSS, INS, LEO satellites, UAV, multi-constellation positioning system, precise positioning, drone management

Abstract

The object of research is the onboard subsystems of Unmanned Aerial Vehicles (UAVs). The research is aimed at analyzing UAVs, specifically the integration and enhancement of satellite-based positioning systems, including Global Navigation Satellite Systems (GNSS) and Inertial Navigation Systems (INS).

The problem concerns traditional satellite-based positioning services, especially those relying solely on medium earth orbit (MEO) satellites, which are insufficient for specific requirements. The study aims to address the limitations of these systems on onboard subsystems of UAVs, especially in challenging environments laden with jammers and interference, and to provide a more accurate, robust, and continuous positioning solution.

The research proposes a «multilayer system of systems» approach that integrates signals from various sources, including low Earth orbit (LEO) satellites, ground-based positioning, navigation, and timing (PNT) systems, and user-centric sensors. The combined approach, termed LeGNSS/INS, leverages the strengths of each component, providing redundancy and enhanced accuracy. The system's performance was evaluated using pseudo-real output data, demonstrating its ability to generate quasi-real dynamic trajectories for UAV flight. The error analysis showed that the proposed method consistently outperforms traditional GNSS systems, especially in challenging environments.

The enhanced performance of the LeGNSS/INS system can be attributed to integrating multiple satellite systems with INS and applying optimal filtering techniques. The research also employed mathematical modeling to represent the dependencies and interactions when combining data from different sources, such as GPS, LEO, and INS. The Kalman filter is a mechanism to fuse data from multiple sources optimally.

The insights from this study apply to various sectors, including aviation, maritime navigation, autonomous drones, and defense. The enhanced positioning accuracy can significantly improve safety, navigation precision, and operational efficiency. However, the study assumes idealized conditions for satellite signal reception, which might not always be accurate in real-world scenarios. Challenges, such as the martial law conditions in Ukraine affecting data collection and potential satellite signal restrictions, were also highlighted. Further research can delve into the impact of more complex environmental factors and the integration of additional satellite systems or sensors to enhance accuracy further.

 

Author Biographies

Igor Zhukov, National Aviation University

Doctor of Technical Sciences, Professor

Department of Computer Systems and Networks

Bogdan Dolintse, SURGe Project

Head of IT Unit

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Enhancing accuracy of information processing in onboard subsystems of UAVs

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Published

2023-10-20

How to Cite

Zhukov, I., & Dolintse, B. (2023). Enhancing accuracy of information processing in onboard subsystems of UAVs. Technology Audit and Production Reserves, 5(2(73), 6–10. https://doi.org/10.15587/2706-5448.2023.287700

Issue

Vol. 5 No. 2(73) (2023): Information and control systems

Section

Information Technologies

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Copyright (c) 2023 Igor Zhukov, Bogdan Dolintse

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