We represent by an electrical model the imaging of a one-dimensional coherently illuminated and diffusely reflecting surface by an optical system with a rectangular aperture. We then obtain the statistical properties of the image intensity from the statistical properties of the square of the envelope of a narrowband noise signal in the electrical model. The analysis is simple because use can be made of results known in communication theory. The results agree with those obtained in a direct way.
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Christoph B. Burckhardt (1970) studied this question.
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