Title :
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
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;
Conference_Titel :
Ultrasonics Symposium, 1990. Proceedings., IEEE 1990
Conference_Location :
Honolulu, HI
DOI :
10.1109/ULTSYM.1990.171441
