RECONSTRUCTION OF A COMPLEX-VALUED OBJECT IN DOUBLE-PASSAGE COHERENT IMAGING THROUGH A RANDOM-PHASE SCREEN

We consider the reconstruction of a complex-valued object that is cohe rently illuminated and viewed through the same random-phase screen. Th e reconstruction is based on two intensity measurements: the intensity of the Fourier transform of the image and the intensity of the Fourie r transform of the image when modulated with an exponential filter. Th e illumination beam has a Gaussian intensity profile of arbitrary widt h, and the phase screen is assumed to be described by a Gaussian rando m process of large variance and arbitrary correlation length. Computer -simulated examples of the reconstruction of a two-dimensional complex object demonstrate that the reconstruction is robust.