Design and applications of an hybrid acousto-optic processor

Author

Goutin, P. ; Logette, P. ; Rouvaen, J.M. ; Bridoux, E.

Author_Institution

Lab. d´´Opto-Acousto-Electron. CNRS, Valenciennes Univ., France

fYear

1990

fDate

4-7 Dec 1990

Firstpage

637

Abstract

An algorithm has been devised to process digital signals using an acoustooptic convolver. The corresponding driving circuitry has been built using PLD (programmable logic device) circuitry. The timing conditions for the emission of the signal and reference ultrasonic waves, for the detection of the convolution signal at the photodetector, and for their memorization have been analyzed. The system has been qualified using various experiments involving FIR (finite-impulse response) filtering, correlation, and matrix multiplication

Keywords

acousto-optical devices; digital filters; optical filters; optical information processing; optical logic; PLD circuitry; acoustooptic convolver; algorithm; convolution signal detection; correlation; design; digital signal processing; finite impulse response filtering; hybrid acousto-optic processor; matrix multiplication; reference ultrasonic waves; signal emission; timing conditions; Acoustic signal detection; Circuits; Convolution; Convolvers; Finite impulse response filter; Photodetectors; Programmable logic devices; Signal analysis; Signal processing; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/ULTSYM.1990.171441

Filename

171441