Optical wavelength transform continuous in time, time shift, and scale

H. John Caulfield; Jacques E. Ludman; Philip L. Hemmer

doi:10.1117/12.177709

1 June 1994 Optical wavelength transform continuous in time, time shift, and scale

H. John Caulfield, Jacques E. Ludman, Philip L. Hemmer

Proceedings Volume 2238, Hybrid Image and Signal Processing IV; (1994) https://doi.org/10.1117/12.177709
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

A continuously-evolving, nonstationary time signal is essentially impossible to analyze digitally. To analyze it by analog optics, we suggest an acoustooptic wavelet transform continuous in separation time, clock time, and frequency. For convenience, we cause the pattern for any signal feature to remain spatially fixed while that feature is in the time window.

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H. John Caulfield, Jacques E. Ludman, and Philip L. Hemmer "Optical wavelength transform continuous in time, time shift, and scale", Proc. SPIE 2238, Hybrid Image and Signal Processing IV, (1 June 1994); https://doi.org/10.1117/12.177709

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