%0 Journal Article %T Visual altitude estimation and vertical landing control of unmanned aerial vehicles %A Sokolov, O.A. %A Basyrov, T.A. %A Korotkiy, M.A. %K unmanned aerial vehicle, altitude estimation, optical flow, landing marker, flight altitude, satellite navigation %J Journal of Applied Research %D 2026 %N %P 0 %I ITBO University