Superresolution in signal processing using a priori information

Abstract

The new signal processing technique is based on using the information received by each element antenna array. This method makes it possible to restore the image of radar targets with angular resolution exceeding the Rayleigh criterion, i.e., with superresolution. The suggested method allows to represent the approximate solutions in the form of series of functions. The main difficulty in the realization of this method is the instability of solutions, which is a consequence of an ill-posed problem. The suggested method allows to approach to the maximum achievable degree of superresolution.