AEROjournal - ročník 23.; číslo 1/2025

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/1265

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    Alternatívne metódy navigácie bezpilotných lietajúcich zariadení
    (University of Žilina, 2025) Močková, Chiara; Dianovský, Robert
    This article deals with the analysis and comparison of alternative navigation methods for unmanned aerial vehicles (UAVs). The aim of the article is to evaluate the effectiveness of selected navigation systems in conditions where traditional GPS-based methods may fail. The introduction presents traditional navigation methods and their limitations. The article focuses on alternative solutions such as visual navigation, celestial navigation, radio signal-based positioning, and inertial visual odometry (VIO). In the final part, the practical implementation of a visual navigation system using drone imagery and satellite images is described, along with the evaluation of its reliability at different flight altitudes. The results confirm the high potential of visual navigation as an independent or complementary system for UAV operations.
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    Analýza meteorologických balónov a sondážnych rakiet ako nástrojov na výskum atmosféry
    (University of Žilina, 2025) Malárik, Samuel; Dianovský, Robert
    This paper addresses the utilisation of meteorological balloons and sounding rockets for data collection for meteorological purposes. The first chapter introduces stratospheric balloons, meteorological balloons and sounding rockets. Their properties, components from which they are constructed, and their current applications are described. The second chapter compares the devices from three perspectives. The operational perspective focuses on flight profiles, control systems, possibilities for reusability, and risks associated with operation. The economic perspective concentrates on the costs associated with launches and possibilities for reduction. The legislative perspective examines the existing legislation pertaining to these devices. The third chapter presents a conceptual design for a sounding rocket, based on which approximate costs for its launch are determined. In conclusion are discussed the advantages and disadvantages of weatherballoons and sounding rockets and the potential area of application for sounding rockets in meteorological measurements is identified.