
Accession Number : ADD012854
Title : Electrooptical Matrix Multiplication Using the Twos Complement Arithmetic for Improved Accuracy.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Bocker,Richard P ; Clayton,Stanley R ; Bromley,Keith
Report Date : 27 May 1986
Pagination or Media Count : 11
Abstract : The improved electrooptic signal processing relies upon matrixmatrix multiplication using twos complement arithemtic. A source of pulse collimated light illuminates two twodimension spatial light modulators that operate in a reflective mode through a polarizing beamsplitter. Each of the spatial light modulators has a matrix of optically encoded information of numbers in the twos complement binary representation so that a mixed binary representation of signals is generated within the twodimensioned photodetector array. The mixed binary representation signals are decoded to a twos complement binary representation or a decimal representation to be useful for more conventional processing techniques. The twos complement arithmetic when incorporated with the electrooptic architecture provides for a convenient means for handling bipolar numbers, avoids the need for matrix partitioning when the matrices are real and offers a means to improve accuracy over conventional optical analog techniques. (Patents)
Descriptors : *PATENTS, *BIPOLAR SYSTEMS, *BEAM SPLITTING, *SIGNAL PROCESSING, *ARCHITECTURE, *ELECTROOPTICS, HANDLING, METHODOLOGY, MIXING, NUMBERS, OPTICS, POLARIZATION, PROCESSING, PULSES, REFLECTION, ACCURACY, ANALOGS, SIGNALS, SOURCES, SPATIAL DISTRIBUTION
Subject Categories : Optics
Numerical Mathematics
Distribution Statement : APPROVED FOR PUBLIC RELEASE