Močková, ChiaraDianovský, Robert2025-10-1520251338-8215https://drepo.uniza.sk/handle/hdluniza/1269This 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.otherunmanned aerial systemsalternative navigation methodsvisual localizationcelestial positioninginertial measurement unitradio-based navigationvisual-inertial odometryArticlehttps://doi.org/10.26552/aer.C.2025.1.1