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Proceedings Paper

Charge-Coupled Device (CCD) Based Electrooptic Processor
Author(s): Richard H. Patterson; Keith Bromley; Michael A. Monahan; Jerome J. Symanski
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Paper Abstract

This paper discusses the capabilities of an electrooptic signal processing device consisting of a light-emitting diode (LED), a matrix mask, and a customized charge-coupled device (CCD). Such a processor can perform a broad variety of useful one-dimensional operations including linear transformation (e.g., Fourier, Walsh, Hankel), multi-channel cross-correlation, filtering, and high-density read-only memory. Any desired window function can be designed into the mask and any desired amount of window overlap can be obtained by appropriate clocking of the CCD. Its strengths include high-speed, compact size, ruggedness, reliability, and potential low cost. However, as in other analog sampled-data systems, its accuracy is moderate (the equivalent of about 8 to 10 bits). The incorporation of a real-time programmable mask into this system expands its capabilities into the nonlinear and recursive filtering realms (in addition to programmable versions of the above-mentioned linear operations) at the expense of system size, complexity and cost. In many applications, the numerical computation capability of such a processor far surpasses that of its conventional electronic digital counterparts.

Paper Details

Date Published: 11 August 1983
PDF: 6 pages
Proc. SPIE 0352, Bragg Signal Processing and Output Devices, (11 August 1983); doi: 10.1117/12.933936
Show Author Affiliations
Richard H. Patterson, Naval Ocean Systems Center (United States)
Keith Bromley, Naval Ocean Systems Center (United States)
Michael A. Monahan, Naval Ocean Systems Center (United States)
Jerome J. Symanski, Naval Ocean Systems Center (United States)

Published in SPIE Proceedings Vol. 0352:
Bragg Signal Processing and Output Devices
Bob V. Markevitch; Theo Kooji, Editor(s)

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