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Proceedings Paper

Wigner Distribution Function/Ambiguity Function Processor
Author(s): Alan A. Rakes; Charles Hester; Ramarao Inguva; B.V.K. Vljaya Kumar
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Paper Abstract

The Wigner Distribution Function and Ambiguity Function are both two-dimensional time-frequency representations of a one dimensional signal. In spite of the similarity of the functional definition, however, the information is encoded in the two functions very differently. This paper reiterates the important traits of both and presents a laboratory setup using acoustooptic cells where both of the functions may be generated with no physical change to the hardware. The theoretical capabilities of such an optical system in terms of equivalent math operations is shown. Also a generalized version of the WDF which demonstrates the additional trait of being positive semi-definite is presented with the technique for adding this capability to the optical design.

Paper Details

Date Published: 22 August 1988
PDF: 10 pages
Proc. SPIE 0936, Advances in Optical Information Processing III, (22 August 1988); doi: 10.1117/12.946943
Show Author Affiliations
Alan A. Rakes, Teledyne Brown Engineering (United States)
Charles Hester, Teledyne Brown Engineering (United States)
Ramarao Inguva, U.S. Amiy Missile Command (United States)
B.V.K. Vljaya Kumar, Carnegie-Mellon University (United States)

Published in SPIE Proceedings Vol. 0936:
Advances in Optical Information Processing III
Dennis R. Pape, Editor(s)

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