Accession Number : AD0767938

Title :   An Introduction to Adaptive Beamforming.

Descriptive Note : Phase rept.,

Corporate Author : NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AERO-ELECTRONIC TECHNOLOGY DEPT

Personal Author(s) : Norr,W.

Report Date : 27 JUN 1973

Pagination or Media Count : 53

Abstract : The purpose of the report is to describe and compare the various algorithms used in ABF (Adaptive Beamforming). It was written primarily to disseminate information among those who will require a working knowledge of ABF. Various techniques of matrix inversion, gradient search, and eigenvalue decomposition of the cross-spectral matrix are discussed. An introduction to beamforming is given in matrix notation, and performance criteria are stated and compared. Although the detailed derivations for the algorithms are omitted, the block diagrams, assumptions, limitations, conclusions, and all available information are given. (Author)

Descriptors :   (*INFORMATION THEORY, *SONAR ARRAYS), ANALYSIS OF VARIANCE, CORRELATION TECHNIQUES, POWER SPECTRA, NOISE, ALGORITHMS, MATRICES(MATHEMATICS), HYDROPHONES

Subject Categories : Cybernetics
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE