Resistor array infrared projector nonuniformity correction: search for performance improvement II

Leszek Świerkowski; Robert A. Joyce; Owen M. Williams

doi:10.1117/12.718075

30 April 2007 Resistor array infrared projector nonuniformity correction: search for performance improvement II

Leszek Świerkowski, Robert A. Joyce, Owen M. Williams

Proceedings Volume 6544, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XII; 654403 (2007) https://doi.org/10.1117/12.718075
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

Research leading towards the continued improvement in resistor array infrared projector nonuniformity correction (NUC) is reported, particularly at low drive levels relevant to thermal imager and FLIR test and evaluation applications. Moire fringes have been successfully compensated, as has the checkerboard effect seen in earlier flood NUC measurements. With these improvements, the residual nonuniformity associated with the random spatial noise has been reduced successfully to the 0.1-0.2% rms level, equivalent to 20-60 mK noise equivalent temperature differences. The random noise is accompanied, however, by a low spatial frequency fixed pattern, currently unexplained but possibly attributable to busbar robbing in the electronic backplane.

Citation Download Citation

Leszek Świerkowski, Robert A. Joyce, and Owen M. Williams "Resistor array infrared projector nonuniformity correction: search for performance improvement II", Proc. SPIE 6544, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XII, 654403 (30 April 2007); https://doi.org/10.1117/12.718075

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