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Optical Engineering

Radar ambiguity function, time-varying matched filter, and optimum wavelet correlator
Author(s): Victor C. Chen
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Paper Abstract

We review the relation between the radar ambiguity function and the matched filter, and then introduce a geometric concept of the matched filter as a slice of the ambiguity function along a frequency-shift line. With the help of this geometric concept, the conventional matched filter can be generalized to a time-varying matched filter, which is equivalent to the optimum time-frequency correlator and can be implemented with wavelet transforms. The application of the optimum wavelet correlator to the inverse synthetic aperture radar is illustrated.

Paper Details

Date Published: 1 July 1994
PDF: 6 pages
Opt. Eng. 33(7) doi: 10.1117/12.172252
Published in: Optical Engineering Volume 33, Issue 7
Show Author Affiliations
Victor C. Chen, Naval Research Lab. (United States)

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