Cooperative automatic modulation classification method based on unmanned aerial vehicle dynamic wireless sensor network

• Main Authors: WU XIAOCHUN, YAN XIAO, WANG QIAN, HE LING, RAO XIAOXUE
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a cooperative automatic modulation classification method based on an unmanned aerial vehicle dynamic wireless sensor network, and belongs to the field of signal modulation identification. Firstly, a local unmanned aerial vehicle in a network modulates and recognizes a received unknown signal by using a graph domain identification method based on cyclic spectrum characteristics to obtain a corresponding local decision, and meanwhile, the local unmanned aerial vehicle with the maximum average received signal-to-noise ratio estimated value is selected as a temporary fusion center of a current network time slot; the local unmanned aerial vehicles send local decisions obtained in the current time slot to the temporary fusion center, then decision fusion is carried out in the temporary fusion center, and the voting weight of each local unmanned aerial vehicle is determined by the cumulative state and the time discount factor of the local unmanned aerial vehicle; and finally the modulation mo