
Accession Number : ADA139984
Title : Expected Energy Method for ElectroOptical SNR Calculations.
Descriptive Note : Technical rept.,
Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
Personal Author(s) : Mayer,G J
PDF Url : ADA139984
Report Date : 02 Feb 1984
Pagination or Media Count : 42
Abstract : A mathematically robust methods is derived that allows the signal to noise ratio (SNR) of an electrooptical system to be estimated when a point source image falls onto a sensor array of discrete picture elements (pixel). The derivation is based on a geometrical analysis of image and sensor element configuration. This method allows the optimal pixel size to be selected to maximize the expected SNR for any point source image once its diameter is known. In this report the method is used to determine the probability of an image falling into one, two, ..., six pixels as a function of image diameter and pixel size, and the corresponding expected maximum signal. Examples are given using this method to estimate the SNR for an electrooptical system. (Author)
Descriptors : *Numerical methods and procedures, *Computations, *Signal to noise ratio, *Electrooptics, Estimates, Energy, Geometry, Images, Arrays, Detectors
Subject Categories : Theoretical Mathematics
Electricity and Magnetism
Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE