| 一种自适应精确调节CCD曝光时间的方法 |
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| 引用本文： | 赵晓琳,马秀荣,彭雪峰,朱均超,郑玉凤.一种自适应精确调节CCD曝光时间的方法[J].传感技术学报,2011,24(6):870-873. |
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| 作者姓名： | 赵晓琳 马秀荣 彭雪峰 朱均超 郑玉凤 |
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| 作者单位： | 1. 天津理工大学计算机与通信工程学院，通信器件教育部工程研究中心，天津300384;天津理工大学薄膜电子与通信器件天津市重点实验室，天津300384
2. 天津理工大学计算机与通信工程学院，通信器件教育部工程研究中心，天津300384 |
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| 基金项目： | 天津市科技创新专项资金项目 |
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| 摘 要： | 在设计微光CCD ICX659ALA的驱动电路和驱动时序的基础上，提出了一种自适应精确调节曝光时间的方法。它以CCD读出时钟周期为单位调节曝光时间，提高了系统的响应速度和对外界的适应能力。选用FPGA器件作为硬件设计平台，采用Verilog语言对驱动时序进行描述。在QuartusⅡ下的仿真结果和示波器观测结果表明设计的...
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| 关 键 词： | CCD 驱动时序 FPGA 微光 曝光时间 |
A precise method to adaptively adjust the exposure time of CCD |
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| ZHAO Xiaolin,MA Xiurong,PENG Xuefeng,ZHU Junchao,ZHENG Yufeng.A precise method to adaptively adjust the exposure time of CCD[J].Journal of Transduction Technology,2011,24(6):870-873. |
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| Authors: | ZHAO Xiaolin MA Xiurong PENG Xuefeng ZHU Junchao ZHENG Yufeng |
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| Affiliation: | 1,21.School of Computer and Communication Engineering,Tianjin University of Technology,Engineering Research Center of Communication Devices Ministry of Education,Tianjin 300384,China;2.Tianjin University of Technology,Tianjin Key Laboratory of Film Electronic and Communication Device,Tianjin 300384,China |
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| Abstract: | A precise method to adaptively adjust the exposure time of CCD has been proposed and demonstrated based on the design of the driving circuit system and timing of ICX659ALA,a Low Light Level CCD.The method takes the CCD read clock as the unit to adjust the exposure time.It improves the system ’ s responsiveness and ability to adapt to the outside world.Field programmable gate array(FPGA)is chosen as the hardware design platform,and driving timing has been described with Verilog.The simulation in QuartusII and experimental results tested with oscilloscope show that the designed driving timing can precisely adjust the exposure time. |
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| Keywords: | CCD drive timing FPGA low light level exposure time |
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