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Optical Engineering • Open Access

Resolved target detection in clutter using correlated, dual-band imagery
Author(s): Larry B. Stotts

Paper Abstract

This paper develops a log-likelihood ratio test statistic for resolved target detection in dual-band imagery because the previous work indicates that most of the processing gains come from processing just two bands. Simple, closed-form equations for the closed-form probabilities of false alarm and detection are given. A computer simulation validates the theory. A constant false alarm rate version of the theory is applied to real available multiband data with quasi-resolved target sets and fixed clutter noise. The results show very reasonable performance in target detectability using three sets of correlated dual-band images. Finally, this paper shows that the resolved target detection problem depends on the weighted difference between the dual-band target contrasts. The theoretical development reaffirms that the signal-to-noise ratio or contrast-to-noise ratio is approximately the weighted difference squared, divided by the normalized total image noise variance.

Paper Details

Date Published: 22 October 2015
PDF: 13 pages
Opt. Eng. 54(10) 103109 doi: 10.1117/1.OE.54.10.103109
Published in: Optical Engineering Volume 54, Issue 10
Show Author Affiliations
Larry B. Stotts, Science and Technology Associates (United States)

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