Changing Trends of Pixel Solid Angles of Long Linear Device under Circular Cold Shield and Its Imaging Simulation
Infrared Technology（2009）
Abstract
The mathematical model of pixel solid angles of long linear device under limitation of circular cold shield is presented.Taken 288×4 device as an example,its changing trends of pixel solid angles is calculated.Mapping the relative value of solid angle into integer interval between 0 and 255,a pseudo gray scale image can be formed which reflecting the imaging effectiveness of the array device under ideal conditions in some degree.
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Key words
imaging simulation,solid angle,infrared imaging system,linear device
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