Acousto-optical third order correlator

Author

Kameyama, Keisuke ; Iwata, Masahiko ; Sakai, Takuji ; Jhang, Kyung-Young ; Sato, Takuso

Author_Institution

Interdisciplinary Graduate Sch. of Sci. & Eng., Tokyo Inst. of Technol., Yokohama, Japan

fYear

1993

fDate

1993

Firstpage

81

Lastpage

85

Abstract

An acousto-optical third order correlator consisting of a laser light source, a 2-D acousto-optical diffractor cell with signal controlling circuitry, a pin hole and a CCD connected to a computer for image processing is introduced. The correlator enables an instantaneous computation of a third order correlation map R₃( tau ₁, tau ₂) of an arbitrary signal by way of optical computing. Through experiments, it proved that the system was able to obtain the R₃ map in real-time with minimal image processing in the computer.

Keywords

acousto-optical devices; optical correlation; optical information processing; 2-D acousto-optical diffractor cell; CCD; CCD image sensors; acousto-optical third order correlator; image processing; laser light source; optical computing; signal controlling circuitry; third order correlation map; Charge coupled devices; Circuits; Correlators; Diffraction; Image processing; Light sources; Lighting control; Optical computing; Optical control; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Higher-Order Statistics, 1993., IEEE Signal Processing Workshop on

Conference_Location

South Lake Tahoe, CA, USA

Print_ISBN

0-7803-1238-4

Type

conf

DOI

10.1109/HOST.1993.264592

Filename

264592