A detection system may include processing circuitry configured to receive synthetic aperture radar image data that has been or will be divided into a plurality of image tiles and perform initial screening to reject image tiles not having a threshold level of energy. The processing circuitry may be further configured to perform advanced screening to eliminate image tiles based on background noise to generate screened image tiles and generate a feature vector for an energy return of the screened image tiles. The processing circuitry may also be configured to determine a classification of a target associated with the feature vector.