Satellite navigation interference source positioning method and system based on unmanned aerial vehicle antenna array

The invention relates to a satellite navigation interference source positioning method and system based on an unmanned aerial vehicle antenna array. Comprising the following steps: acquiring various sensor data signals of the unmanned aerial vehicle in different flight states; setting parameters of the neural network, and performing unmanned aerial vehicle fault detection by using the trained network; a co-prime array receiving signal model is obtained; calculating a covariance matrix of the received interference signal and vectorizing the covariance matrix; respectively calculating covariance matrixes of the positive part and the negative part of the virtual array and vectorizing the covariance matrixes; constructing a comprehensive covariance matrix of the original array and the virtual array through spatial smoothing; constructing a dictionary in the whole monitoring space by using sparse representation, and further constructing a multi-direction-finding vector sparse representation model; and converting t