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为了设计一种支持电子式像移补偿功能的高帧频大面阵CCD驱动电路,满足像移补偿功能。论文首先给出了大面阵CCDFTF5066M的基本驱动电路,然后在其基础上通过增加一个“像移补偿时序发生器”与主时序发生器SAA8103配合工作来实现电子像移补偿,给出了“像移补偿发生器”内部设计结构,所增加的像移补偿时序发生器只用于产生曝光期间所需的几个垂直转移驱动时序和转发SAA8103产生的时序信号。选择了FPGA作为像移补偿时序发生器,并且进行了时序仿真。最后对设计的驱动电路进行了室内像移补偿实验验证,取得了很好的补偿效果,该驱动电路系统支持最大帧频可达2.7 F/s,信噪比达到了66 d B。该驱动电路能方便地选择输出通道数量和输出方式,使相机适用于不同的场合。
In order to design a high frame rate large area CCD drive circuit which supports the electronic image shift compensation function, the image shift compensation function is satisfied. The thesis first presents the basic driving circuit of CCDFZF5066M and then, based on the above, adds an “image shift compensation timing generator” to work with the main timing generator SAA8103 to realize the electronic image shift compensation. “Image Motion Compensation Generator ” Internal Design Structure The added Image Shift Compensation Timing Generator is only used to generate the few vertical transfer drive timings needed during the exposure and to forward the timing signals generated by the SAA8103. FPGA was selected as the image shift compensation timing generator, and the timing simulation. Finally, the design of the drive circuit for indoor image motion compensation experimental verification, and achieved good compensation effect, the drive circuit system supports up to 2.7 F / s frame rate, signal to noise ratio reached 66 d B. The drive circuit can easily select the number of output channels and output, so that the camera suitable for different occasions.