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Proceedings Paper

Weak target detection using the entropy concept
Author(s): Herbert Gish
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Paper Abstract

Entropy and its generalization, the Kuliback-Leibler measure can be useful in characterizing the relationships that exist between measurements. The relationships that exist when a target is present provide a means of distinguishing these measurements from a set of measurements due to noise alone. We utilize these ideas in developing a detection procedure that first develops a score based on measurements using the Significance Test and then calculates the relationship between the measurements. This relationship is the "effective number" of measurements entering into the Significance Test score and is computed from the entropy of the normalized measurements; both a high score and "effective number" are needed for a detection. The "effective number" is used to discriminate against false detections, i.e., high scores, caused by a relatively few, strong, noisy measurements. We compare the performance of this detector to more conventional detectors in the problem of detecting a target in Weibull clutter.

Paper Details

Date Published: 1 October 1990
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Proc. SPIE 1305, Signal and Data Processing of Small Targets 1990, (1 October 1990); doi: 10.1117/12.2321764
Show Author Affiliations
Herbert Gish, BBN Systems and Technologies Corp. (United States)


Published in SPIE Proceedings Vol. 1305:
Signal and Data Processing of Small Targets 1990
Oliver E. Drummond, Editor(s)

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