15 August 1988 Spatial Noise In Staring IR Focal Plane Arrays
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Abstract
Problems with nonuniformity correction algorithms due to nonlinear pixel response and 1/f noise have been shown previously to cause spatial noise which can be significantly greater than temporal noise. The residual spatial noise after correction cannot be reduced with time averaging. Because of spatial noise the sensitivity of staring FPA sensors is often less than predicted on the basis of the temporal noise of the individual elements. A review is given of methods for measuring and analyzing spatial noise (after nonuniformity correction) in staring infrared focal plane arrays. Automated measurement techniques are described briefly, including necessary equipment and data reduction procedures. An example of spatial noise measurements is given using a staring InSb Charge Injection Device(CID) array.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D A Scribner, D A Scribner, M R Kruer, M R Kruer, K Sarkady, K Sarkady, J C Gridley, J C Gridley, } "Spatial Noise In Staring IR Focal Plane Arrays", Proc. SPIE 0930, Infrared Detectors and Arrays, (15 August 1988); doi: 10.1117/12.946627; https://doi.org/10.1117/12.946627
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