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