Mobile sensor array AOA detection sum-difference algorithm

The invention discloses a mobile sensor array AOA detection sum-difference algorithm, and belongs to the technical field of radar. The mobile sensor array AOA detection sum-difference algorithm comprises steps of arranging a signal receiving array, moving the signal receiving array, receiving signals at different moments during the moving process, forming two matrixes according to different receiving time, merging the two matrixes, furthermore obtaining a rotation invariant matrix through eigenvalue decomposition, inversely solving the rotation invariant matrix, and obtaining the azimuth angle and the pitch angle of a signal source relative to the signal receiving array. Compared with the prior art, the mobile sensor array AOA detection sum-difference algorithm is advantaged in that received data information can be fully used, the estimation precision of the angle of the signal source is improved, and the problem that the requirement of a conventional ESPRIT method on the array structure is restricted, and the precision of the conventional ESPRIT method under a low signal to noise ratio is low can be overcome.