OPTICAL IMPLEMENTATION OF A REGULARIZED GERCHBERG ITERATIVE ALGORITHMFOR SUPERRESOLUTION

A regularized coherent optical processor, exhibiting considerable immu nity to phase noise, is designed and used to achieve resolution beyond the diffraction limit. Regularization is achieved by means of a piezo electric displacement of one of the feedback mirrors. The optical proc essor is used for real-time object restoration from noisy, diffraction -limited images. A software implementation of the regularized algorith m, for the case of a two-slit object, shows good agreement with the re sults obtained from the optical processor.