Abstract
The theory of feedback, shows that when a feedback system has a loop gain Aβ much larger than unity, the transfer function O/I of the system is almost entirely governed by the elements β contained in the feedback branch.
The output "O" is thus the ratio of "I" to "β". One could translate this operation to an optical two-dimensional division system by replacing I by a "numerator array" and β by a "denominator array".
© 1985 Optical Society of America
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