TY JOUR TI Automated System for Safe Flight Termination of an Unmanned Aerial Vehicle in Case of Fiber-Optic Communication Link Failure KW unmanned aerial vehicle KW fiber-optic communication link KW safe flight termination KW LQR controller KW adaptive control KW MRAC KW economic efficiency KW expected loss JO Journal of Applied Research AU Sokolov, O.A. AU Shlykov, K.N. AU Molchanov, D.V. PY 2026 IS 0 PB ITBO University