Unmanned aerial vehicle NOMA energy-carrying communication physical layer secrecy method and system based on artificial noise

The invention provides an unmanned aerial vehicle NOMA energy-carrying communication physical layer secrecy method and system based on artificial noise, and the method comprises the following steps: in a first time slot, a ground base station transmits wireless energy to an unmanned aerial vehicle; in a second time slot, the ground base station sends a wireless signal to the unmanned aerial vehicle, and the unmanned aerial vehicle and the trusted near user respectively send artificial noise to the untrusted remote user; in a third time slot, the unmanned aerial vehicle performs XOR on artificial noise generated by the unmanned aerial vehicle and a credible near user signal, and superposes with an uncredible far user signal to be sent to the two users; the interruption probability and the eavesdropping probability are obtained by calculating the signal to interference plus noise ratios and the signal to noise ratios of the credible near users and the uncredible far users in each time slot. The problem of energ