DocumentCode :
909103
Title :
Computer simulation of hybrid cross-correlators
Author :
Collings, N. ; Lindstrom, P.
Author_Institution :
Standard Telecommunication Laboratories Ltd., Harlow, UK
Volume :
133
Issue :
1
fYear :
1986
fDate :
2/1/1986 12:00:00 AM
Firstpage :
31
Lastpage :
34
Abstract :
A computer model for simulating hybrid optical/digital cross correlators for pattern recognition is developed to investigate accuracy and limitations of a hybrid cross correlator compared to an ideal digital cross-correlator. The hybrid system is based on matrix-addressed LCD displays and CCD camera chips as interface devices. Both joint-transform and frequency-plane correlators can be simulated, and different physical distortion effects from the optical components and from the interface devices can be included. The evaluation of the hybrid system is carried out in the correlation plane, which is the output of the system.
Keywords :
digital simulation; optical correlation; pattern recognition; signal processing; CCD camera chips; digital cross correlators; frequency-plane correlators; hybrid cross-correlators; interface devices; joint-transform correlators; matrix-addressed LCD displays; optical components; optical cross correlators; pattern recognition; physical distortion effects;
fLanguage :
English
Journal_Title :
Optoelectronics, IEE Proceedings J
Publisher :
iet
ISSN :
0267-3932
Type :
jour
DOI :
10.1049/ip-j.1986.0005
Filename :
4644041
Link To Document :
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