Method for modeling detection of camouflaged targets

Details Method for modeling detection of camouflaged targets Method for modeling detection of camouflaged targets

2006-12-12

2006-12-12

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Statistical measurement

Reexamination Certificate

active

07149652

ABSTRACT:
The methods for determining the probability of detection of a thermally camouflaged target at various ranges by the sensor includes determining an “inherent” temperature difference, ΔTRSS, between the target and its immediate surroundings. Once ΔTRSSis determined, a scaled N50cycle criterion, or the number of resolvable cycles needed by the sensor for a fifty percent probability of detection, is determined according to the relationship N50=A/(ΔTRSS)B+C, where A, B and C are constants that are predetermined according to whether the immediate surroundings are of a woodland or a littoral nature. The scaled N50cycle criterion is then used in an empirical Target Transfer Probability Function (TTPF) defined by P=(N/N50)E/(1+(N/N50)E), where E=2.7+0.7(N/N50), in order to determine the probability of detection of the thermally camouflaged target.

REFERENCES:
patent: 5734495 (1998-03-01), Friedman
patent: 6882409 (2005-04-01), Evans et al.
Barbara L. O'Kane, Validation Of Prediction Models For Target Acquisition With Electro-Optical Sensors, Vision Models For Target Detection And Recognition, 1995, 193-218, vol. ll, World Scientific Publishing Co., Singapore.

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