TY JOUR TI Method for estimating the power loss of the Bluetooth radio signal when the signal passes through the ship's metal bulkheads KW Passenger transport KW evacuation KW victim rescue KW indoor navigation KW Bluetooth KW radio beacon KW obstacles KW radio transmission KW signal propagation KW radio signal attenuation JO Operation of Maritime Transport AU Kamenev, M.S. AU Akmaikin, D.A. AU Gams, A.V. PY 2021 IS PB Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University”