22 October 2004 Applications of hybrid-optical spectrographic processor
Author Affiliations +
Abstract
Optical spectrographic processing systems have been shown to be the most widely used techniques for time-varying signals that usually contain very distinct characteristics in spectral distributions and are difficult to categorize in time (spatial) domain. In this paper, an optical architecture for spectrograph generation, by which time-varying signal processing can be performed, is proposed and its implementation is described in detail. Some potential applications using optical spectrographic processing system in phonetics, linguistics, speech identification are investigated. Simulation results are also presented to demonstrate the effectiveness of the optical spectrographic processing system in those application areas. Other applications of the optical spectrographic analysis system in identifying individuals through "voice prints" or in detecting mechanical fatigue through abnormal noise are also indicated.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuexin Liu, Yuexin Liu, Bo Wang, Bo Wang, John Youwei Fu, John Youwei Fu, Ruyan Guo, Ruyan Guo, Francis T. S. Yu, Francis T. S. Yu, } "Applications of hybrid-optical spectrographic processor", Proc. SPIE 5560, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X, (22 October 2004); doi: 10.1117/12.560533; https://doi.org/10.1117/12.560533
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Multiple Image Recognition By Nonlinear Optical Correlation
Proceedings of SPIE (February 08 1989)
Multichannel Programmable Acousto-Optic Correlator
Proceedings of SPIE (August 22 1988)
Analysis Of Nonlinear Optical Correlation
Proceedings of SPIE (December 16 1989)
Compact Optical Correlators
Proceedings of SPIE (February 08 1989)

Back to Top