
Accession Number : AD0711827
Title : THE FORMULATION AND ANALYSIS OF THE THEORY FOR DETERMINING REQUIRED RECEIVER MEMORY FOR SIGNAL DETECTION.
Descriptive Note : Technical rept.,
Corporate Author : DUKE UNIV DURHAM N C ADAPTIVE SIGNAL DETECTION LAB
Personal Author(s) : Baxa,Ernest G. , Jr.
Report Date : MAR 1970
Pagination or Media Count : 214
Abstract : The purpose of the report is to develop and evaluate a theory of memory applicable in statistical detection theory. An optimum finite memory approach is postulated and the resulting signal detector designs are evaluated for a class of problems including SignalKnownExactly (SKE), SignalKnownExcept Amplitude (SKEA), and Mary Signaling. The finite memory detector design for a class of problems involving a transient signal is considered also. The transient signal is described in terms of one of a finite number of possible time varying waveforms which recur synchronously. The fixedended finite memory design for the nonsequential SKE problem is presented. This design involves problems where the observation length is specified a priori and a decision output is rendered only at the end of the observation. Also an openended finite memory design is presented which results from assuming a priori neither the eventual length of obervation nor the maximum length of observation. Using the Receiver Operating Characteristic (ROC) the openended finite memory design is evaluated and compared with the optimum infinite memory design. Results show that the infinite memory detector performance can be obtained by a very small finite memory detector involving seven states. The tradeoff between detector memory and time is also apparent. (Author)
Descriptors : (*DETECTORS, *INFORMATION THEORY), ADAPTIVE SYSTEMS, CONTROL SEQUENCES, DATA STORAGE SYSTEMS, STATISTICAL ANALYSIS, OPTIMIZATION, THESES, BACKGROUND, PERFORMANCE(ENGINEERING), NOISE(RADIO)
Subject Categories : Cybernetics
Distribution Statement : APPROVED FOR PUBLIC RELEASE