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Control Systems, Telecommunications and NavigationReview of GPS-Free Navigation Methods for Unmanned Aerial Vehicles

Review of GPS-Free Navigation Methods for Unmanned Aerial Vehicles

Review of GPS-Free Navigation Methods for Unmanned Aerial Vehicles Oleksandr Taran ORCID: https://orcid.org/0009-0009-3744-9155 Oles Honchar Dnipro National University Purpose. This paper reviews various non-GPS navigation methods for Unmanned Aerial Vehicles (UAVs), with a particular focus on radio frequency (RF) techniques such as Time of Flight (TOF), Received Signal Strength Indicator (RSSI), and Time Difference of Arrival (TDOA). Design / Method / Approach. The study compares time-based and signal strength-based approaches for locating mobile UAVs, emphasizing the accuracy of multilateration and …

Control Systems, Telecommunications and NavigationSelection of Launch Vehicle Motion Model Parameters for Spacecraft Insertion into Circular Orbits

Selection of Launch Vehicle Motion Model Parameters for Spacecraft Insertion into Circular Orbits

Selection of Launch Vehicle Motion Model Parameters for Spacecraft Insertion into Circular Orbits Ruslan Keba ORCID: https://orcid.org/0009-0007-9490-1254 Oles Honchar Dnipro National University Anatolii Kulabukhov ORCID: https://orcid.org/0000-0003-1139-4829 Oles Honchar Dnipro National University Purpose. This study aims to justify the selection of parameters for a launch vehicle’s pitch angle program during the insertion of spacecraft into circular orbits. The goal is to improve the accuracy and efficiency of the insertion process, optimizing the delivery of payloads to their target orbits. Design / …

Control Systems, Telecommunications and NavigationTransfer functions of a time-varying control system

Transfer functions of a time-varying control system

Transfer functions of a time-varying control system Volt Avdieiev ORCID: https://orcid.org/0000-0002-9986-7637 Oles Honchar Dnipro National University The mathematical model of linear time-varying systems (LTV) is the differential equations with coefficients that change over time. The question of their analysis and synthesis is an integral part of the control theory, the development of which is caused by the need to solve a number of technical problems, in particular, the design of aircraft motion control systems. For the study of LTV, in …

Control Systems, Telecommunications and NavigationOverview of Ardupilot Platform Capabilities for Developing Autonomous Aerial Vehicle Control Systems Resistant to Electronic Warfare

Overview of Ardupilot Platform Capabilities for Developing Autonomous Aerial Vehicle Control Systems Resistant to Electronic Warfare

Overview of Ardupilot Platform Capabilities for Developing Autonomous Aerial Vehicle Control Systems Resistant to Electronic Warfare Oleksandr Taran ORCID: https://orcid.org/0009-0009-3744-9155 Oles Honchar Dnipro National University The purpose of this work is to explore and elucidate the capabilities of the Ardupilot platform for developing robust control systems for autonomous aerial vehicles (AAVs) that are resilient to challenges posed by electronic warfare (EW). Utilizing a comprehensive analytical approach, this study examines the platform’s ability to integrate with various AAV types, its compatibility …

Control Systems, Telecommunications and NavigationNumerical modeling of controlled motion of a quadcopter drone

Numerical modeling of controlled motion of a quadcopter drone

Numerical modeling of controlled motion of a quadcopter drone Liudmyla Hart ORCID: https://orcid.org/0000-0003-2617-7851 Oles Honchar Dnipro National University Volodymyr Ruzhevych ORCID: https://orcid.org/0009-0006-2127-4387 Oles Honchar Dnipro National University The paper focuses on the use of control theory tools to develop a mathematical model of the controlled movement of a quadcopter drone. The purpose of the work is to perform a numerical analysis of the proposed mathematical model of a quadcopter based on an integrated systems approach, which consists in the sequential …

Control Systems, Telecommunications and NavigationMethodology for determining the pitch angle program for launching spacecraft into circular orbits

Methodology for determining the pitch angle program for launching spacecraft into circular orbits

Methodology for determining the pitch angle program for launching spacecraft into circular orbits Ruslan Keba ORCID: https://orcid.org/0009-0007-9490-1254 Oles Honchar Dnipro National University Anatolii Kulabukhov ORCID: https://orcid.org/0000-0003-1139-4829 Oles Honchar Dnipro National University Circular orbits are widely used by spacecraft (SC) to fulfill their intended purposes. In particular, circular orbits are used by all satellite communication systems, navigation satellites, and Earth remote sensing satellites, where the stability of the constellation over time is a crucial element. The stability of the constellation in …