Accession Number : AD0713456

Title :   SOME INFORMATION PROCESSES FOR ARRAYS OF SENSORS.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Swick,David ; Young,F. Mansfield ; Finney,William

Report Date : 01 OCT 1970

Pagination or Media Count : 50

Abstract : Representing an energy field over an interval of time by a single, multidimensional array of data permits formulations of the sensor-array problem that are well suited to use of known mathematical techniques on existing mathematical machines. One considers some resulting transformations and analysis procedures that can provide operationally useful information from operational acoustic arrays. In particular the report discusses multidimensional generalized transforms that map arrays of data into arrays of coefficients of basis functions and formal analysis procedures that operate on the arrays of coefficients to provide estimates of desired field or source parameters. The data arrays may result from nonuniformly spaced sample points in space and time. The basis functions are exemplified by exponentials in wavenumber-frequency space, and for that case analysis-of-variance techniques may be applied to the array of coefficients to provide estimates of the spatial and temporal frequency components of the field. (Author)

Descriptors :   (*ACOUSTIC DETECTORS, DATA PROCESSING), (*ACOUSTIC SIGNALS, MATHEMATICAL ANALYSIS), INTEGRAL TRANSFORMS, PARTIAL DIFFERENTIAL EQUATIONS, MATRICES(MATHEMATICS), STATISTICAL TESTS, WAVE FUNCTIONS, SAMPLING, COMPUTER PROGRAMMING

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE