Abstract: A radio beacon system configured to assist autonomous flight of one or more unmanned aerial vehicles (UAVs), wherein the radio beacon system comprises: —a drone device (200), configured to be installed on an UAV and including a radio transceiver, and —a radio beacon device (100), configured to be installed on ground and including N antenna arrays (110, 120) with N?2, one or more radio transceivers configured to communicate with the radio transceiver of the drone device (200), and at least one processing unit (130), wherein each antenna array (110, 120) has M antenna elements (115, 125) with M?2 associated to respective beamforming electronic weights w(n, m), with n ranging from 1 to N and m ranging from 1 to M, wherein said at least one processing unit (130) is configured to perform an adaptive beamforming method for assisting autonomous flight of the UAV.

Abstract: A radio beacon system configured to assist autonomous flight of one or more unmanned aerial vehicles (UAVs), wherein the radio beacon system comprises:—a drone device (200), configured to be installed on an UAV and including a radio transceiver, and—a radio beacon device (100), configured to be installed on ground and including N antenna arrays (110, 120) with N?2, one or more radio transceivers configured to communicate with the radio transceiver of the drone device (200), and at least one processing unit (130), wherein each antenna array (110, 120) has M antenna elements (115, 125) with M?2 associated to respective beamforming electronic weights w(n, m), with n ranging from 1 to N and m ranging from 1 to M, wherein said at least one processing unit (130) is configured to perform an adaptive beamforming method for assisting autonomous flight of the UAV.