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- Article name
- Researches of long-term stability of two-point nonuniformity correction parameters for 256×256 InSb FPA
- Authors
- Solyakov V. N., , orion@orion-ir.ru, Orion R&P Association, 9 Kosinskaya str., Moscow, 111402, Russia
Kortikov M. V., , orion@orion-ir.ru, Orion R&P Association, 9 Kosinskaya str., Moscow, 111402, Russia
- Keywords
- signal / image / parameter / stability / point-to-point correction
- Year
- 2010 Issue 1 Pages 58 - 61
- Code EDN
- Code DOI
- Abstract
- The researches of long-term stability of two-point nonuniformity correction parameters for 256×256 InSb FPA were carried out. Two-point correction implied definition of two parameters for each photosensitive element on signals measurements at two levels of a homogeneous illumination of a photosensitive matrix. Simultaneous measurements of two parameters describing two-point correction, and their changing in time were lead. It was shown, that influence of instability of differential sensitivity leads to occurrence of geometrical noise at the radiation levels close to a level of the second calibration, not smaller, than parameters changing of one-point correction. The value of geometrical noise was unchanged for 45 min.
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