Beam scanning radar super-resolution target direction finding method

According to the beam scanning radar super-resolution target direction finding method disclosed by the invention, more signal source numbers can be estimated. According to the technical scheme, the method comprises the steps that interference composed of complex Gaussian white noise and Gaussian clutter is added into radar pulse signals, a pulse matrix is generated, then the range of a beam scanning radar angle estimation area is divided into grid points which are evenly distributed, and an operation matrix and an over-complete dictionary are constructed; reconstructing a sparse signal by using a sparse representation algorithm; completing reconstruction of the sparse signal by using a basis pursuit method; establishing a redundant dictionary matched with a signal structure; selecting a non-zero element value as the amplitude of a target; the method comprises the following steps: estimating the directions and Doppler frequencies of multiple moving targets in the same distance direction unit to obtain the angl