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Proceedings Paper

Optical And Analog Electronic Signal Processing
Author(s): Harper Whitehouse
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Paper Abstract

A two lens optical Fourier transformation is shown to be equivalent to an electronic chirp transform. For discrete time signals this transformation becomes the discrete chirp-z-transform. The chirp-z-transform can be implemented using either charge transfer devices or surface acoustic wave devices. Through the use of appropriate architectures, a long one-dimensional chirp-z-transform can be rewritten as a modular chirp-z transform using both charge transfer devices and surface acoustic wave devices. Thus in a manner similar to the means by which a two-dimensional lens system can process large one-dimensional signals, so a combination of electronic components configured as a modular chirp-z-transform can process the same signal without the need for an optical system.

Paper Details

Date Published: 28 December 1977
PDF: 7 pages
Proc. SPIE 0128, Effective Utilization of Optics in Radar Systems, (28 December 1977); doi: 10.1117/12.955981
Show Author Affiliations
Harper Whitehouse, Naval Ocean Systems Center (United States)


Published in SPIE Proceedings Vol. 0128:
Effective Utilization of Optics in Radar Systems
Bernard W. Vatz, Editor(s)

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