Accession Number : ADA182874

Title :   Optical Architectures for Matrix Processing.

Descriptive Note : Final rept. 3 Sep 84-15 Apr 86,

Corporate Author : WESTINGHOUSE RESEARCH AND DEVELOPMENT CENTER PITTSBURGH PA

Personal Author(s) : Goutzoulis,A P ; Davies,D K

PDF Url : ADA182874

Report Date : Nov 1986

Pagination or Media Count : 190

Abstract : A study to explore optical methods for performing eigen system calculation based on matrix vector or matrix matrix multiplications has been completed. Several implementations of eigen system solution algorithms including digital multiplication by analog convolution and bit parallel multiplication were analyzed to determine performance/cost tradeoffs. All methods were determined to have unsatisfactory multiplication speed and efficiency. Two new approaches to the problem, optically interconnected electronic multipliers and position coded residue optoelectronic look-up table (LUT) processing, were proposed. After analysis and LUT implementation, both methods appear feasible and merit further investigation. Keywords: Optical processing; Optical computing architectures; Acousto-optic processors; Residue arithemtic; Digital multiplication; Analog convolution parallel multiplication; Circularly polarizing sampling.

Descriptors :   *ACOUSTOOPTICS, *OPTICAL CIRCUITS, *COMPUTER ARCHITECTURE, *MATRICES(CIRCUITS), *OPTICAL PROCESSING, PROCESSING EQUIPMENT, ANALOG SYSTEMS, CONVOLUTION, MULTIPLICATION, DIGITAL SYSTEMS, COMPUTATIONS, EIGENVECTORS, SOLUTIONS(GENERAL), ARCHITECTURE, OPTICAL PROPERTIES, CIRCULAR, POLARIZATION, SAMPLING, VELOCITY, PARALLEL PROCESSORS, TABLES(DATA), COSTS, PERFORMANCE(ENGINEERING), TRADE OFF ANALYSIS

Subject Categories : Computer Hardware
      Acoustooptic and Optoacoustic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE