Proceedings ArticleDOI
Noise limitations in dynamic infrared scene projection
Owen M. Williams
- Vol. 2552, pp 44-55
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TLDR
In this paper, the temporal and spatial noise factors that set the ultimate performance limits on dynamic infrared scene projectors are assessed and the needs for non-uniformity correction procedures are both discussed, followed by a detailed analysis of the spatial and residual spatial noise contributions within the projector/imaging unit under-test (UUT) composite system.Abstract:
The spatial and temporal noise factors that set the ultimate performance limits on dynamic infrared scene projectors are assessed. Fixed pattern noise and the needs for non-uniformity correction procedures are both discussed, followed by a detailed analysis of the temporal and residual spatial noise contributions within the projector/imaging unit-under-test (UUT) composite system. It is found that the system is more tolerant to projector spatial noise by a factor of about four compared to UUT spatial noise. The temporal and spatial noise contributions are combined appropriately in order to provide guidance as to the levels of array uniformity that will need to be achieved if the expected demands for fine temperature resolution are to be met.read more
Citations
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Proceedings ArticleDOI
Dynamic infrared scene projector temperature resolution
TL;DR: In this article, the authors examined the factors influencing the attainment of fine simulated temperature resolution in a dynamic infrared scene projection system and showed that the input data word bit resolution, the simulated temperature range requirement, the shape of the input word transfer function and the presence of spatial noise all affect the temperature resolution.
Proceedings ArticleDOI
Measurement of the wideband infrared scene projector (WISP) radiometric and thermal resolution
TL;DR: The third generation of the Wideband Infrared Scene Projector (WISP) resistor arrays has been delivered to the Air Force Research Laboratory's Kinetic Kill Vehicle Hardware-in-the-Loop Simulation facility.
Proceedings ArticleDOI
A Comparison Of The Performance Limit Of Schottky Barrier And Standard Infrared Focal Plane Arrays
TL;DR: In this article, the authors introduced the notion of D* as a figure of merit for focal plane arrays and analyzed its effect on the performance of a Schottky barrier and a standard photon detector over the 3 to 5 μm spectral band.
References
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Proceedings ArticleDOI
Characterization and nonuniformity correction of a resistor array infrared scene projector
Robert G. Stockbridge,George C. Goldsmith,David G. Edwards,Andrew W. Guertin,Lawrence E. Jones,Eric M. Olson +5 more
TL;DR: In this article, the characterization measurements of a 128 X 128 metal-oxide semiconductor field effect transistor (MOSFET) resistor array scene projector are presented, and the measurements include spectral output performance, dynamic range, spectral apparent temperature, uniformity, rise time, fall time, droop percentage, and current consumption.
Proceedings ArticleDOI
High-performance 512 x 512 scene projector for targets against space backgrounds
Barry E. Cole,C.-J. Han,Robert E. Higashi,Donald Gordon Pritchett,B. Sawyer,Thomas Eugene Old,George C. Goldsmith,David G. Edwards,Robert G. Stockbridge,Lawrence E. Jones +9 more
TL;DR: In this paper, the performance of a CRISP 512 X 512 array consisting of 3.5 mil pixels and a high-speed 128 X 128 NODDS array with ultra-low power emitters is described.
Journal ArticleDOI
Infrared projector optical design considerations
TL;DR: The optical considerations that need to be addressed during the design of IR projectors intended for application within real-time hardware-in-the-loop simulation systems are examined, with particular emphasis on the sampling effects (aliasing) that need be avoided.
Journal ArticleDOI
Infrared-photodetector background-current estimation
TL;DR: Values of the parameters defining the idealized spectrum are derived for the majority of photodetectors in common use today, including silicide Schottky-barrier devices, and are applied within several examples of background-current estimation.
Proceedings ArticleDOI
Imaging infrared fundamentals: an alternative perspective
TL;DR: Infrared analysis is re-examined in the light of the current status of imaging infrared technology, with a focus on the radiometric, temporal and spatial contributions of the sub-system characteristics.