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SYSTEM AND METHOD FOR SAME-CHANNEL OUT-OF-BAND SPECTRUM SENSING FOR COMMAND AND CONTROL (C2) COMMUNICATIONS TO UNMANNED AIRCRAFT SYSTEMS (UAS)
SYSTEM AND METHOD FOR SAME-CHANNEL OUT-OF-BAND SPECTRUM SENSING FOR COMMAND AND CONTROL (C2) COMMUNICATIONS TO UNMANNED AIRCRAFT SYSTEMS (UAS)
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机译:用于与无人机系统(UAS)进行指挥和控制(C2)通信的同信道带外频谱传感的系统和方法
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摘要
A command and control (C2) radio system configured for same-channel out-of-band sensing is disclosed. In embodiments, the radio system (e.g., an air radio system (ARS) aboard an unmanned aircraft system (UAS) or a ground radio station (GRS)) scans its switching back to the appropriate operating frequency before the next subframe starts. The radio system processes the collected energy samples to determine minimum and mean operating frequencies for idle subframes and slots where a preamble is not detected. The radio system uses idle frames to scan sensing frequencies assigned by a central server of the C2 link system, collecting spectral energy sources during the idle timeslots and energy levels, thereby identifying the level of interference on the assigned frequency (e.g., due to noise or interfering signals) and hypothesizes whether the detected interference is tolerable or precludes current use of the assigned signal in the vicinity of the radio system.
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