行间转移型面阵CCD成像系统设计

发布时间：2018-05-25 05:42

本文选题：成像系统 + 行间转移型面阵CCD　；参考：《红外与激光工程》2014年08期

【摘要】：采用行间转移型面阵CCD KAI-1020作为图像传感器,以现场可编程门阵列(FPGA)为核心控制器,设计并实现了一个完整的成像系统。FPGA产生驱动时序、控制CCD上电顺序、调节曝光时间,并实现数据缓存。CCD模拟视频信号经过预处理,通过同轴电缆传输到CCD专用视频处理器进行相关双采样和模数转换,以10位像素深度输出到FPGA,数字视频信号经过差分芯片驱动以低压差分信号(LVDS)格式输出到数据采集卡。集成化视频处理电路提高了系统的信噪比,改善了成像质量。实验表明,CCD成像系统工作稳定可靠,像素读出时钟为10MHz时,帧频为10帧/s。设计的CCD成像系统性能好、可靠性高、实现周期短,具有很强的可扩展性。
[Abstract]:Using the interline transfer array CCD KAI-1020 as the image sensor and the field programmable gate array (FPGA) as the core controller, a complete imaging system .FPGA is designed and implemented to generate driving timing, control the sequence of CCD power on, and adjust the exposure time. The data buffering. CCD analog video signal is preprocessed and transmitted to CCD video processor through coaxial cable to carry out correlation double sampling and analog-to-digital conversion. The digital video signal is driven by the differential chip and output to the data acquisition card in the low voltage differential signal (LVDS) format. The integrated video processing circuit improves the signal-to-noise ratio and the imaging quality of the system. The experimental results show that the system works stably and reliably. When the pixel readout clock is 10MHz, the frame rate is 10 frames / s. The designed CCD imaging system has good performance, high reliability, short implementation period and strong expansibility.
【作者单位】：中国科学院长春光学精密机械与物理研究所;中国科学院大学;
【基金】：国家高技术研究发展计划(863-2-5-1-13B)
【分类号】：TN386.5;TN911.73

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