Boots – shoes – and leggings
Patent
1995-10-17
1998-03-10
Voeltz, Emanuel T.
Boots, shoes, and leggings
364579, 364525, 348187, 348189, G05B 2302, H04N 1700
Patent
active
057269157
ABSTRACT:
An automated system and method for testing a sensor by evaluating the output thereof with respect to a known target. The advantageous method includes the step of acquiring an output signal from the sensor in response to a known target, said output including signature signal S, random noise N.sub.R and fixed pattern noise N.sub.FP. Next, the sensor output signal is processed to provide a first signal which includes essentially signature signal S and fixed pattern noise N.sub.FP, a second signal which includes essentially random noise N.sub.R and a third signal which includes essentially fixed pattern noise N.sub.FP. The third signal is adaptively filtered to provide a filtered signal fixed pattern noise signal N'.sub.FP. The filtered signal N'.sub.FP is subtracted from the first signal to extract a signature S. In a particular embodiment, the signature is processed to acquire a modulation transfer function and a signal peak baseline therefrom. The modulation transfer function, signal peak baseline and random noise signals are processed to acquire a minimum resolvable temperature of said sensor.
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An Automatic Tester Which Performs Objective Measurement on Imaging Sensor Systems Robert Zwirn/Kenneth Prager.
Mauri Robby
Prager Kenneth E.
Denson-Low Wanda K.
Hughes Aircraft Company
Lindeen III Gordon R.
Sales Michael W.
Vo Hein
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