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  • Information acquisition and pre-processing circuit design of infrared focal plane detector
    • role： First author第一作者
    • Affiliation：

      中国科学院 上海技术物理研究所,上海,200083

    范文龙1,  
    • Affiliation：

      中国科学院 上海技术物理研究所,上海,200083

    • No information about the author is available
    董峰1,  
    • Affiliation：

      中国科学院 上海技术物理研究所,上海,200083

    • No information about the author is available
    傅雨田1

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Based on lucubrating the output characteristic of the infrared focal plane detector with 1500 pixels, which is made by Shanghai Institute of Technical Physics, Chinese Academy of Sciences, we develop a kind of circuit of information acquisition with the kernel of low-noise amplifier and a project scheme of data pre-processing with the kernel of FPGA. This design makes the driving circuit and the detector match well so that the high sensitivity character of the detector is fully exerted. The testing results indicates that this design plays an important role in acquiring a Noise Equivalent Temperature Difference (NETD) better than 50 mK, and the wide band quantization design guarantees the dynamic scope and abundant image levels of the system. This design is applied successfully in infrared focal plane detectors of some other kinds.
Keywords
focal plane detector;pre-amplifier;driving circuit;Field Programmable Gate Array (FPGA);Noise Equivalent Temperature Difference (NETD)

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