Accession Number : AD0780241

Title :   The Theory of Signal Detectability: Extension to Optimum Arrays.

Descriptive Note : Summary rept. 1972-73,

Corporate Author : DUKE UNIV DURHAM N C DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Adams,Stanley L.

Report Date : JUL 1973

Pagination or Media Count : 291

Abstract : The purpose of this research is to further the theory of signal detectability as applied to systems employing an array of sensors. The specific approach is to make use of optimal space-time likelihood ratio processing for signals which have varying degrees of uncertainty associated with them. A specific type of spatially correlated noise field is incorporated in the model. Optimum receiver structures and their detection performance are derived for far field signal sources of known direction in spatially correlated noise when the signal waveform is either known or uncertain. Optimum receiver structures are derived for detecting active targets of uncertain direction in spatially correlated noise and passive targets of uncertain direction in spatially uncorrelated noise. Optimum receivers and their performance are computed for noise fields with statistics which are a function of space and time. Optimum receiver structures and their performance are computed for moving targets. (Modified author abstract)

Descriptors :   *Signal processing, *Bayes theorem, *Underwater sound, *Acoustic arrays, Correlation techniques, White noise, Stochastic processes, Field theory, Moving targets, Computer programs, Mathematical models, Theses

Subject Categories : Statistics and Probability
      Cybernetics
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE