Models For Diffracting Aperture Identification : A Comparison Between Ideal And Convolutional Observations

Giovanni Crosta

doi:10.1117/12.935852

22 September 1983 Models For Diffracting Aperture Identification : A Comparison Between Ideal And Convolutional Observations

Giovanni Crosta

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Proceedings Volume 0413, Inverse Optics I; (1983) https://doi.org/10.1117/12.935852
Event: 1983 Technical Symposium East, 1983, Arlington, United States

Abstract

We consider a number of inverse diffraction problems where different models are compared. Ideal measurements yield Cauchy data , to which corresponds a unique solution. If a convolutional observation map is chosen, uniqueness can no longer be insured. We also briefly examine a non-linear non-invertible observation map , which describes a quadratic detector. In all of these cases we discuss the link between aperture identification and optimal control theory , which leads to regularised functional minimisation. This task can be performed by a discrete gradient algorithm of which we give the flow chart.

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Giovanni Crosta "Models For Diffracting Aperture Identification : A Comparison Between Ideal And Convolutional Observations", Proc. SPIE 0413, Inverse Optics I, (22 September 1983); https://doi.org/10.1117/12.935852

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