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Numerical Reconstruction Systems from Acoustic Holograms Using the Backward Propagation Method

In this paper a digital imaging system is studied in terms of an analog point spread function. The Fourier integral representation of the DFT is introduced and applied it to the backward propagation method to analyze a holographic imaging system. Then, without using the Fresnel approximation, A point spread function of the system is derived through which simple formal solutions for basic problems are obtained. Some experimental results are also displayed to demonstrate the discussion.