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《Infrared and Laser Engineering》 2015-11
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Analysis of underwater range-gated imaging system MTF

Hu Ling;Wang Xia;Yan Bo;Li Shuaishuai;Key Laboratory of Photo Electronic Imaging Technology and System, Ministry of Education of China, School of Optoelectronics, Beijing Institute of Technology;Science and Technology on Low-light-level Night Vision Laboratory;  
As great attention has been paid to the application requirements of the underwater imaging detection nation wide, underwater resources exploration and so on, it has been the target of the underwater imaging researchers to set up suitable underwater photoelectric imaging model. The corresponding modulation transfer function(MTF) and total system MTF model were established to explore underwater range-gated imaging system performance. Through the use of underwater laser range-gated imaging prediction model and programs, the imaging performance of the present market adopted super second generation and generation Ⅲ intensifiers were analyzed in comparison. Results indicate that the forward scattering light MTF and backscattering light MTF show a trend of gradual decline when detection range or gating time is increasing. The forward scattering light MTF declined faster. What ′ s more, system MTF shows a trend of gradual decline when detection range, special frequency or gating time is increasing. Generation Ⅲ intensifier has more advantages than super second generation intensifier.
【Fund】: 微光技术实验室科研基金(J20130502)
【CateGory Index】: TN761
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