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A research on the dynamic range of the dual channel monochrome sCMOS

In the electro-optical pod, the dynamic range is an important performance index of photo detector. The low dynamic range (LDR) can cause saturation at high end or compression at low end, which directly leads to the loss of information. In order to improve the dynamic range of photo detector, it introduces the dual channel scientific complementary metal oxide semiconductor (sCMOS) in this article, which adjusts the gain level of two imaging channels according to the scene and illumination, and then performs the procedure of image synthesis in each pixel. After making a further research of the imaging principle of dual channel monochrome sCMOS, it mainly studies the relationship between the dynamic range and the gain level. Through calibrating radiation response curve by adapting different gain level, the paper has verified the dynamic range of this dual channel monochrome sCMOS and provides a theoretical basis for the application of it in different scenarios.