5 August 2015 Realization of video electronics system in the space-borne multispectral imager
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In this paper, a new multispectral imager video electronics system is introduced. The system has an imaging function of visible spectrum (VIS), near infrared spectrum (NIR), short wave infrared spectrum (SWIR), medium wave infrared spectrum (MWIR) and long wave infrared spectrum (LWIR). It is comprised of three video processors and an information processor. Three video processors are VIS-NIR processor, SWIR-MWIR processor and LWIR processor. The VIS-NIR processor uses time delay and integration charge coupled devices (TDICCD) as detector, samples and quantifies CCD signal under the mode of correlated double sampling (CDS), corrects image data by using large-scale field programmable gate array (FPGA). The application methods of SWIR-MWIR processor and LWIR processor are similar. Information processor is the most important part of the video electronics systems. It is responsible for receiving remote control command from other equipments, transmitting telemetric data, controlling the three video processors working synchronously, encoding and transmitting the image data from the video processor. Besides the introduction of system’s functions and system composition framework, detailed implementation methods of some important components will be described in this paper as well. The experimental result shows that all main technical indexes meet the design requirement.
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Peng Rong, Peng Rong, Ning Lei, Ning Lei, Ganglin Cheng, Ganglin Cheng, Jing Huang, Jing Huang, } "Realization of video electronics system in the space-borne multispectral imager", Proc. SPIE 9622, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 96220M (5 August 2015); doi: 10.1117/12.2185535; https://doi.org/10.1117/12.2185535


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