
Accession Number : AD0628807
Title : MAXIMIZATION OF TRANSINFORMATION IN PHOTODETECTION.
Descriptive Note : Technical rept.,
Corporate Author : DELAWARE UNIV NEWARK DEPT OF ELECTRICAL ENGINEERING
Personal Author(s) : Murray,John C. ,Jr.
Report Date : JUN 1965
Pagination or Media Count : 62
Abstract : A photodetector is considered as a communication channel and a study made of the maximum information per degree of freedom I which can be transmitted through the channel. Application of the calculus of variations yields a necessary equation which the input probability must satisfy when I is a maximum. It is found that for large average signal energy this necessary equation is satisfied when the input signal energy has an exponential probability density. The dependence of I an average signal energy with an input probability of this maximizing form is calculated numerically. (Author)
Descriptors : (*DEMODULATORS, PHOTOELECTRIC EFFECT), (*INFORMATION THEORY, DEMODULATORS), OPTICAL COMMUNICATIONS, CALCULUS OF VARIATIONS, PROBABILITY, NUMERICAL ANALYSIS, SIGNALS
Subject Categories : Electrical and Electronic Equipment
Cybernetics
Distribution Statement : APPROVED FOR PUBLIC RELEASE